The lights are on
IMO the XBox 360 has XBL. There are a lot of things about XBL that make it superior to PSN (although PSN is free). More than anything I think that is the reason to own a 360. There are games exclusive to one or the other system, but that really only furthers the argument that you should probably own both. I've been an XBox 360 owner for a while and I came to it via PS2 so I've never owned a PS3. At this point I'm too used to the setup, the system and the controller to go anywhere else, but it really comes down to which service you feel offers more. Of course, there's also that whole Blue-Ray thing.