Pphhh. I don't know any PS3 owners that do that, or at least admit to it.
I love the PS3 exclusives. Almost all of them. Ratchet and Clank, Uncharted, Resistance 1 and 3 were fantastic (especially the recent 3, wow SO good), Demon's Souls, Disgaea, Atilier, Ar Tonelico, Folklore, Flower, Infamous, 3D Dot Heroes, Dead Nation, God of War, the Ps2 HD Remkaes (Prince of Persia, Sly, Tomb Raider), Heavy Rain, Hyperdimension Neptunia, Metal Gear Solid 4, Valkyria Chronicles, White Knight Chronicles, Killzone....
I own them all and love every one of them. But then, I'm a fan of quality single player games and have no interest in multiplayer. Not everyone shares that taste in games, that's understandable. But if they didn't like the PS3 exclusives, why would they brag about them? Makes no sense. Those type of people are Grade A douches.