I only have a PS3, and since I have a like for more games from Japan, I have no interest in the 360 at all. My PS3 is region free, which the 360 isn't, and it has a bunch of exclusives I am very proud to have been able to play.... Yakuza 3/4, Valkyria Chronicles, 3D Dot Game Heroes, Mobile Suit Gundam 0081, Demons Souls, Minna De Spelunker, Atelier Rorona, Atelier Totori, Little Big Planet 1/2, and it has games coming like Ninokuni, Tales of Graces F, and Toki no Towa.
My only regret is I will never be able to play Lost Odyssey. Nothing else about the 360 I care about. Move and Kinect are motion control gimmicks I can't get behind. Cross game mic chat, I don't care about, since I don't even use a mic, or want to. I am fine with the text chat. Works better for me, no one yelling in my ear, and I don't have to keep saying "what?" to foreigners with funny accents.