It is probably best to play an offline game like Skyrim on PS3 however for an online game like MW3 its better to use Xbox because its more smoother.
Agreed... but since i don't play that much of Multi-player games... i choosed to get PS3..
The only multiplayer game that i'm really playing at the moment is BF3..
But i still play games with multiplayer such as AC:Brotherhood etc..
But i agree with you, PS3 is better for single-player, and Xbox for multiplayer... Xbox live is way better than PSN.
I'm a PS3 player and i admit it... it's true.. Xbox live is better..