The European Gaming website "PlayDevil" has posted an interesting article on the graphical difference of multiplatform games on all home-consoles and PC.
Here's a snip:
"There is no best example than the PlayStation 2, which had a slow start with inferior ports from Dreamcast and games that didn't match the graphical prowness promised, but in the end, showed things like 'God of War' and 'Shadow of the Colossus'.
The first console to offer some exclusive benefits to developers, was GameCube, with the indirect texturing unit. It was the beginning of pixel shaders on videogames. God, does anything looks better than Rogue Squadron?"