Poll: Apples or Oranges?
That being said, current generation mid range to high end PC video cards with modern games have graphics look quite a bit better than X box 360.
Obviously, there is a lot more then just graphics to a game, otherwise consoles would have all disappeared decades ago and PC gaming would dominate the scene. People care about cost, learning curve, "play with their friends" abillity, "play sitting on the couch" abillity, and the like.
PC's dominate in some areas (graphics, controls, abillity to mod, online play), Consoles are good at other things (sitting on the couch play, cheaper, don't need multiple systems to get multiplayer going, etc.)
And don't say but console blablabla supports 1080P, because my monitor is higher resolution than 1080p (1920x1200 vs 1920x1080). Of course there are more polygons and bigger textures in PC games too, but that doesn't seem to be the hyped up thing to talk about today.