And I mean real PC games not MMOs. I'll cite some examples.
Dragon Age
Stalker
Siege of Avalon
Crysis
Age of Decadence
Eschalon
Fallout 1, 2, and yes.... even bethesda's 3.
Neverwinter Nights
Baldur's Gate
Half Life
The many Command and Conquer games.
The multiple Dune games.
Starcraft 1 and soon to be 2
All the PC Sim's games.
Black and White 2
etc...
Yes, I'm aware some of those games have been ported to consoles, but some console games have been ported to the PC. In either case the PC version is almost always superior in graphics, resolution and some even have extra content added. For instance Bio-ware's Jade Empire and Lionhead's Fable both had extra content added for the PC version.
As will the soon to be released GTA IV. All of the GTA games have been reworked for the PC. And for those that need to have a gamepad to play those games. The PC supports more controller designs then any console ever will. Infact a few people took the time to make the Nintendo Wii controller work on the PC.