Seriously guys, I've played both systems. And i decided to buy a PS3.
The PS3 is JUST AS GOOD if not BETTER than the 360 on so many levels.
Graphics wise, i know most people consider the 360 a better system for picure quality. WRONG. Infact, the 360 just uses texture blurring to make it appear to be better graphics by tricked the human eye. The PS3 may not have better praphics, but they're sure as hell just as good.
Game wise, I like the PS3 games better, there are more RPGs, which are my kinda game. the 360 usually comes out with more shooter games. So game whise, your choice.
Controllers. PS3 wins with wireless HANDS DOWN.
The rest of the features are up to you, everything balances out if you ask me.