graphics arent at all important, when it comes down to shaders and post processing.
as long as models can show what they are properly and not make mario look like he has a tetrahedron instead of a nose, i couldnt care less.
the graphics arent at all bad anyways.
cod 4 had terrible graphics IMO if you put it that way. it doesnt have much to make it look nice besides the texture detail and model detail. bumpmaps and grass look terrible and grainy.