These games both have quality and quantity that Sony exclusives can only dream of. These games are basically played forever, until the next installment is released, there are whole dedicated communities for them and they are by far the ultimate party or multiplayer games.
Sales, Reviews and popularity wise they also completely annhilate anything Sony has to offer.
Sony has nothing like this or anything that even comes close to it. No I'm not talking about decent games you play once and then everyone forgets about within a year or two. I'm talking about timeless games like Halo and Smash Bros. I'm saying Sony has nothing on THAT level.
You know what... PS3 may not have a killer exclusive fps but when you have stuff like Uncharted 2 and LBP, who really cares? Plus the PS3 controller makes all multi-plat titles automatically better (argue if you like). Mind you, if you're mad into jrps (like me) you need a PS360 combo, as both have their essential exclusives.