PC games will be populated by only Darwinia and RTS games in the future (although C&C works well on xbox360)
Many people have slowwed down upgrading the PC because they are comfortable with XP, improving hardware is costly and things like splitscreen on PC suck, aswell as other things such as devs get pirated like biatches on PC (
yo, ho pirates!) and people cannot see the point in buying a new graphics card each month for new games.
Consoles may not be as good as the PC because the PC is a moving target but its reliable and its as good at this point as you ever want it to be. Making games look any more realistic is pointless because I already cant really tell the difference.
*rant over*