Graphics are all about illusions, something which looks good propably is because the background or other textures are fooling your eyes. Then there's the bloom&lightning effects which make everything shiny and colorful, this usually makes people think it has good graphics. Now lot of people complain about the multiplatform games which have slightly different graphical differences, people seem to forget that both consoles have completely different architechtures, something which looks all shiny on the other console might be darker on the other if it's not optimized and is just ported with slight changes.
Look at the conduit on wii, it looks surpisingly good because it has great texturing. Then there is the halo 3& Gears of War 1&2 which uses HD textures and bloom effect to make everything shinier. Then there is killzone 2 which has really sharp character models and surroundings but it doesn't use the bloom effect at all, it has the most realistic graphics I have ever seen in a game.








