I've got both....PS2 last year and Xbox this year. I got GTA3(PS2) and I've played it twice since I got Halo for the Xbox. There really is no comparison. Xbox all the way. The fact that there is a HD in the machine as well as a NIC means that you have a great base for online gaming without additional expense. I also LOVE the fact that you can rip CDs to the HD and listen to your own music while you play your games.

JM2¢