XBox 360, definantly! It has: Great graphics, loads of online games, player-points/rankings, avatar choices, downloadable trailors, previews on the newest videogames, and demos! You can also have a contact list for all your friends and, with the headset, talk to them just like you are on a telephone!
Not all 360's catch fire. When 360's first came out, people were definantly scamming and selling them on ebay and other such sites, and when the people actually got them they exploded...
Plus, on the PS3, they don't have many games out so far, and the ones that are out are all sports (No offence to sports-game fans). PS3's have also been known to screw up your TV