PS3 all the way - better features, FREE ONLINE PLAY, better graphics, better parts, longer lasting, more ergonomic...(I can go on and on).
I've never liked anything 360 had to offer (excluding Halo

), nor its predecessors. Stick to PC games, Microsoft! Nintendo used to be the go-to systems for me, but everything after the N64 seemed to be child-focused and by that time I was addicted to graphic violence (

).
Although I am totally a PS2 and PS3 guy, I am not all that impressed by some of the things the PS4 is going to have (or I should say not have). I was pissed enough when PS3 wasn't reverse compatible, but I lived with it. But I hear the PS4 is going to require user authentication to play games/access content online, which will effectively kill the used game & trade industry once and for all.

I may not get that one, I'll have to think about it. I expect the 720 or whatever they're calling it will follow suit, so I'm not seeing alternatives yet. I'll just keep the PS3 until something impresses me so much I'll just have to buy it. May be a while.