I don't think it's a matter of looking better per system as much as looking better for specs. The PS3 video showed the same a major lack of detail compared to what we've seen on HD systems. The Wii actually showed models that looked more advanced than 6th gen versions of the game.
That's the difference.
A flashy-first game is awesome when it comes out. A great-first game is awesome forever.
Plus, just for the hell of it: Kelly Brook at the 2008 BAFTAs








