I prefer using a PC but I can't imagine life without an iPod. (At least not again) So I'd probably choose MAC. Although in the commericals, PC is fat guy and Mac has the sarcastic, neo-geek, Die Hard 4.0 guy. Hmm..tough. Probably PC though. That's with a gun to my head.
A handful of Koreans teach you everything there is to know about Starcraft 2 or you get radioactive slime on you and you have unbelievable reflexes in First-Person Shooters?