360 has loads of great exclusives though. And most of the best multiplatform ports.
Looking at the internal teams now, it seems to me Sony have more first party devs. MS has a lot of Kinect devs or smaller devs like Twisted Pixel. Sony used to have a few underperforming devs like Superbot, Zipper and etc which they have let go, while they have expanded their big studios into two teams like Naughty Dog and Guerilla. The only prominent devs MS have are Turn 10, 2 Lionhead teams, Rare, Black Tusk and 343 while they have Crytek contracted to make Ryse. While Sony has 2 Guerilla Games teams, Media Molecule, 2 Naughty Dog teams, 2 Santa Monica teams, Sucker Punch and Polyphony while they have Quantic Dreams and RaD contracted to make a exclusive game each.