Okay this is a heated debate with gamers. lol But I think that Xbox live is better, i've only used PSN once, but i use XBL daily and cant stop. lol It's amazing really. I know there are quite allot of similarities, so they dont soud so different, but XBL is a great gaming experience, even if you aren't playing online games.(you can still party chat with friends while playing non-online games)Also, I dont play Black Ops, just zombies, but I liked it on Xbox as well.