Yes i am a "halo fanboy" but Crysis has THE BEST graphics PERIOD for any video games right now.
Hardly any computers made can even run the game at full graphics capacity, most people who saw a trailer probably saw a low render trailer because their comp cant run better, basically to run the game near full specs u need 4gb of ram, dual graphics cards, and a physics card...aka 99.99% of the population isn't even close.
Personally I think of the games that are out right now that GRAW 2 has about the best graphics, along with COD 4.