It is pretty much impossible to make a good Moral system in games, because what is considered good or evil varies greatly between cultures, religions, even generations. There is no universal good and evil it is all a matter of perspective.
Whoever did this comparison is a moron, the brightness is turned up way too much for all of the PS3 shots. And, there is no comparison the PS3 is far better graphically, not to say that the 360 is not good as well but maybe they should compare not cross console games and see which one is better?
Glokwerk's comments