I'll go with Mikuru because she is not entirely honest with Kyon.

I'm going Mio. shes already got a bit of a mean streak, and I could see her popping caps if she got pushed too far.

tsukasa....she's scary

mikuru would bust after so much harassment

Hard choices. I'd go for Mio.

Yandere has to have long hair after all, and Mikuru comes from the future, so she probably wouldn't snap so easily.

Mikuru she'd have to snap eventually.

Mikuru would totally go ape shit crazy with all the things Haruhi does to her

Mio. Mikuru doesn't seem like she could do much even if she snapped and Tsukasa is just straight up clumsy. Only Mio has the ability to snap AND become super violent.

I'd pick Tsukasa because I don't believe any of them would be yandere ever. So I just did a battle royale in my head between the 3 and Mikuru's beam http://www.youtube.com/watch?v=LuDrvzXtJ8A and Mio's Moe Moe Kyun ~ http://www.youtube.com/watch?v=7zB6HpO4Z0A . See examples. Tsukasa won the battle by default b/c she was having cell phone troubles and never made it to the arena. http://www.youtube.com/watch?v=4tR7siq4SN0

Tsukasa, I'd say. Mikuru doesn't have it in her. And I haven't seen K-On, so Mio's not a choice for me.

Mio's already violent , she hits Ritsu all the time...

Out of all the contestants, only mio has any actual mean bones in her body.

The other two are just way to stable in their own ways. Mikuru is under a strict professional code, and tsukasa... well she is just a ditsy girl.

Tsukasa..will accidentally blow something up and kill alot of people!

I pick Mio. Her violent streak tends to get buried underneath her cowering streak, but it's there. That chokehold she put on Ritsu in Episode 4 seals the deal.

Having never seen Lucky Star, the battle would be between Mio and Mikuru. While Mio has been endlessly harassed by the likes of Ritsu and Sawako, these were rather minor when compared to Haruhi's harassment of Mikuru. Also assuming that both were to blow there caps, the Mikuru beam would destroy everything.

That being said, for the record, I am more of K-ON! than I am of Haruhi.

Tsukasa. Caught in the middle between Kagami and Konata, endless pressure to compete with her sister and always left trying to understand what the hell Konata's doing, harassed by otaku who think she's cosplaying that To Heart character, she'd probably beat everyone to death with her cellphone.

Tsukasa because she'll probably subconciously kill you on accident. She'll claim she didn't mean to drop the toaster in the bathtub while tripping on the floor, but deep down...deeeeeeeep down, she knows she relished every second of your electrofied body writhing in pain as it burnt to a crisp.

Also because Mio doesn't deserve to win anything else after her last landslide.

I refuse to imagine any of those cute girls going yandere. I had nightmare because of Higurashi and I only watched the first arc. Rena scared the crap out of me. I can watch most horror film with no problems but that show is something else.

Anyways, if one of them has to be a yandere I chose Mikuru since she's the only one I haven't chosen to be my waifu at some point.

I honestly don't know. I am trying to picture what sort of event would cause anyone of them to snap, and it always leads to the horrifying conclusion that those events will more likely destroy them rather than the opposite effect of inducing violence.

Maybe I need to watch School Days first.

I'm going with Tsukasa, Gotta agree with the view of her snapping under all teh pressure. That...and she would probably also be the Funniest to see crack out of all of them.

Am I the only one who wants to see at least one Higurashi story out of all of these animes...?

Tsukasa. The way I see it Mio gets her frustration out through her violence against Ritsu and her music. Tsukasa just keeps it inside... letting it fester and grow... until she blacks out and everyone has their head on a pike.

Can't imagine any of those but Mio snapping. She's been punishing Ritsu all this time already. A little push from the side and SNAP! We're all dead.

tsukasa

i just remember that guro pic
>_

Mio, Ritsu will push to far and then BAM psycho bitch ahoy.

Mio. Just wait till she hit someone's head with her guitar....

"and have spawned countless hentai doujin more than any one person can fap to in their entire lifetime."

You underestimate me.

Not Mio because she snaps all the time, yet never even comes close to yandere territory. As for Tsukasa I wouldn't know, but Mikuru would come as the greatest surprise, and that's what good yandere are all about.

Mio and Tsukasa have (well, at least Mio has) or can stand their ground. Mikuru gets run over and hasn't stood up for herself a lick.

Mikuru will go flippin INSANE when she snaps

and one more thing:

future Mikuru? that's the look of someone who had to go through rehab/counciling.

Tsukasa for sure! If Konata takes her to another con, she'll definitely snap...she'll couldn't find those doujinshi that Konata requested and she'll get lost. Thats when she'll freak out and start a massive killing spree.

I reckon she could take out 12 otaku before she's overpowered by security.

This is a tough one... I really don't know, so I think I'll try and think this through.

Tsukasa would really surprise me if she was a yandere. She does the klutz act too well to be pretending, and all the situations she ends up in that could possibly warrant an angry reaction she either sheds it off Miyuki style or starts cowering and whimpering and then people forgive her.

Mio gets angry but she actually vents her anger healthily, so I don't think she'd have as big a blowout as someone who doesn't vent at all, but that scene in the fourth episode where she holds Ritsu by the collar still shows she can be formidable.

Mikuru?.... Mikuru's klutzy and just cries and worries when she gets in trouble. Haruhi harassed her all to hell, but she just cried it off usually.

It's a scientific fact that people that cry when in a frustrating situation are able to let go of stress a lot quicker and healthily than those who get angry instead. And so by that logic combined with the fact that there don't seem to be any weird wild cards in play in this debate, I'd have to say that Mio would be the most dangerous of these three.

That said, she really isn't that dangerous at all, it's just that we're only comparing among these three so... heck, Mio strikes me as more of a tsundere than a yandere, even if she's got more dere-dere than tsun-tsun.

But if we were to go by who takes the most abuse and thus should blow up the greatest if they ever were to snap, I'd say Mikuru given how much crap Haruhi puts her through....though...I'm not sure on that since sometimes she seems to enjoy it...

Its gotta be Mio.

Mikuru has already shown an incredibly high tolerance to harassment, anyways her future self showed up the same as always.

Mio doesn't handle the harassment well though. She gets angry at Rio all the time and already has violent tendencies. I could accept the argument that she wouldn't snap as dramatically because she already fights back but I think it'd be pretty epic.

Tsukasa won't snap, she's not aware she being harassed half the time. Anyways, she'd botch any attempts at violence by accidentally leaving it in her pocket and washing it.

Mio lashes out anyway, and Mikuru also vents with her crying, and I am going off who will be the most fun to watch freak out.

Tsukasa wouldn't snap, but I want her to, so my vote is for her.

Mio. There's evidence.

Tsukasa Hiiragi

I like Mio a lot, but I have to go with Mikuru. I fear the Mikuru beam.

I would say Mikuru, but as other people have said, she just doesn't have what it takes to go crazy. So, I'd go with Tsukasa, she'd snap kinda like Ted Bundy. She has a normal life, except with a few odd things in them, add those together, and BAM! Tsukasa's climbed a clocktower, and started shooting students. She'd be cute doing it, though.

Mikuru is the only meber of SOS that still (books) havent sworn total loyalty. It is also posible that future Mikuru is the truth antagonist, as she pretty much caused every event in the series.

I thought of anoter reason why tsukasa would snap. She's the quiet, timid one. It's always, the quiet timid one, not the angry one, or the play thing.

Tsukasa.

I vote Mio. The amount of torture from Ritsu and the constant anger from never actually practicing is slowly building up. After having killed everyone but Azusa, her secret sister that no one knows about, she goes on to take over the world. Once she has control of the world, Azusa joins up with her for some hot lesb... some good old family fun by playing -EXTREME- K-On! Guitar Hero. Finally, she loses to Azusa and kills her then she nukes the rest of the world.

Mikuru. She's from the future, and we have no idea if she hasn't already killed everyone.

Tsukasa, having to constantly live in her sister's shadow, even having her own friend Konata stolen by her sister, a girl can only be pushed so far, Tsukasa will snap eventually...and blood will flow.

mikiru for sure

"Her Mikuru beam will bust a cap on your ass yo! "
I see what you did there.

Definitely Tsukasa.

While Mio displays some mild, violent tendencies, she is the character least likely to snap because she knows how to vent out her frustrations before they reach critical mass. She won't go postal.

Mikuru is the 2nd most likely to snap, but the possibility of her going deranged is sniffed out because a) she's not too bright b) she's clumsy and c) we know she turns out well because of her future counterpart. While she may be the subject to the most stress (having to deal with Haruhi and knowing that all existence hangs in the balance) out of the three, she seems to have developed a tolerance to abuse and she has reliable comrades to help her out.

Hence,I nominate Tsukasa as the candidate most likely to become a Yandere. Tsukasa always lives in the shadow of her sister and has a proven inferiority complex. All the while, she is largely ignored by everyone, not just from her friends, but also from the family. While Kagami may be the most irritable member of their family unit, Kagami nonetheless conjures attention around herself. Tsukasa is simply forgotten. This compounds with Tsukasa's inferiority complex and makes here more vulnerable to snapping, because Tsukasa has no one to talk to about her problems.

Mikuru.

This Mio looks most promising. Tsukasa is /too/ timid, Mikuru is to...I'unno, nice, I guess. Not that I've actually seen K-On!, but it's my vote.

Mio.

Tsukasa.

Tsukasa. As others have said, it's always the quiet ones. She probably has a siscon for Kagami and resents Konata stealing her away. ;) She almost never gets mad or frustrated, so she doesn't have much opportunity to vent her frustrations. Trust me, the poor girl will go off like the Czar Bomb someday. And I kinda want to see that happen. >:)

Oh yeah, and her twin sister is a tsundere; she's almost polar opposite in terms of personality, so doesn't it make sense?

Mio gets my vote this time. Both her and Mikuru are tortured more than Tsukasa, and Mio gets the victory because she's actually capable and not completely ditzy.

Mio 'cause she has bite.

Tsukasa tsukasa!

Tsukasa, when she snaps you better watch out 'cause its gonna get nasty.

Hard to say, since ive not seen K-ON, but i doubt Mikuru nor Tsukasa would snap and go on a killing spree. Mikuru seems pretty versed in rules for time travel, and wouldn't intentionally break those rules (which may or may not include killing sprees).
Tsukasa probably wouldnt kill someone on purpouse, but I can definatley see it as an accidental homicide. Nothing on purpouse so...
So by default, ill vote for Mio. When I have the oppertunity, ill check out K-ON later.

Mikuru.

thats how the Melancholy of Haruhi Suzumiya ends is with mikuru killing haruhi an ending the everything

Mikuru Asahina

I'm more afraid of the Mikuru beam than a "cooch punch" though.

Mikuru, definatly. Shes being harrased and tormented by Haruhi, and her feelings are being surpressed so badly, shes sure to snap... MIKURU BEAM! :3

Mio seems most likely out of the above.