I wouldn't consider any of those great and I'm not even counting my personal taste since I counted Demon's Souls (I hate that game) and I think 3D dot game heroes is solid.
If we're counting PC then I guess no the 360 doesn't have any exclusive wrpgs but for the vast majority who don't have a gaming PC they do. Mass Effect 1 at the very least. Oblivion was huge for the system in the early days too even though it made its way to ps3 later on when no one cared anymore
Sony's suffered quite a bit by not jumping on the wrpg bandwagon like 360 did and like PC always has. I don't really think of Fable as a great wrpg but it sells a lot for Microsoft.
I agree. Guerrilla is rumored to be making an RPG, interested to see how that works out.