Re: Why PC gaming is great!
dedicated servers on most multiplayer games, which give a better gaming experience than the usual P2P stuff on consoles.
Usually (not always) a more mature community than people on consoles
The ability to modify most games. Good examples would be games that Valve and bethesda make.
Keyboard and mouse are better than a controller for almost all genres (imo)
Better gfx than consoles
Some really good exclusives (usually RTS)
Cheaper than consoles
Games have far greater longevity on the PC than on consoles.