PCs in the AMD / Intel sense after using Amigas and Various consoles for years, it was probably team fortress classic that pretty much made me bin consoles for good. I own a 360 but it rarely gets used, the only real console I still use is the original XBox which is hacked to run emulators, can't see myself ever getting rid of that.
Only a couple of my friends are PC gamers and everyone agrees you can pretty much say PC has much better graphics but I can go home and fire up Unreal Tournament 99 and find loads of players playing, if I run left for dead on the 360 and wait in a lobby I can be sat there for 20 mins before I even see another player.