I would have to say XBox... Has a much better online multiplayer system going for it even though you have to pay for the online gaming but well worth it... While ps3 has an awsome blu-ray player, and decent graphics but that's about it. If you want it for for game play then I would definitely go with the XBox 360... Especially now with the new Kinect feature/ accessory you can get for it.
Xbox all the way even though you have to pay for online you get amazing gameplay especially with black ops,Halo reach,modern warfare 2, and so much more and the controllers fit perfectly in you hands instead of ps3 small little controller I tried ps3 ps2 and hated both the xbox is easy to maneuver with options setting music and etc and you can choose wut xbox you want u can get the speacial edition ones the slim which has less problems with red ring and the old arcades which have less memory and the kinect has just bested it up for families I've been a fan of xbox and will always be and people that say ps3 has better graphics it matters about the game your playing and our tv chooutside