Why do you insist on saying "Dark Souls publisher" every time you talk about this game. It's not Dark Souls related and From Software isn't working on this at all. Bandai is plenty recognizable on its own.

If you want proof of which system is better for graphics just look at Killzone 2 and Uncharted 2. (at least for PS3 vs 360)

Most of these games look almost exactly the same.