everything to do with chocolate? But out of the list... a chocolate bar... and I'll like dip it in hot chocolate mixed with coffee, and die from excess caffeine or something. It will be a good death though, a chocolatey one...
Although I'm a bit more metaly, well, symphonic metal *gazes dreamily at Nightwish and Within Temptation* Evanescence, cause they were like the first rock band I ever really listened to, and I luffles them^^
For now, I'd say the Rikus because they've defeated Roxas before, and we don't know if Ven is like 'ohmigish his power level is over 9000!!!!' or anything, but if Ven really is like that, then I don't know.
There is a chance it's Riku, because after Roxas lost to him, he ended up in Twilight Town... but it could be something else, you never know what Squeenix has up their sleeve ^^
Lexaeus, Xaldin, Saix, and Vexen! ^^Yeah... I'm going to imagine them in cheerleader uniforms now, except for Vexen, he's been dressed like that before :P
Speaking seriously, neither of them, they would be dead before they blinked their eyes, but if we're involving Riku's smexiness... one can never be too sure^^
If they actually did fight, and Demyx didn't bore Xaldin to death, our Whirlwind Lancer would win, because even though the boss fight may not have been too hard, in actuality, Xaldin would have shiskabobed or whatever Demyx in six different places quickly.
Pretty much everyone but Sora, cause I'm like that...and by everyone I mean Lexaeus and Vexen too^^ All of them are just too awesome in their own way, maybe not the pretty boy type <insert Xaldin or Lexaeus here> but somehow...^^