I play all valve games on my PC as i feel that is the way that they were intended to be played. I love playing TF2 on my PC and actually wouldn't want to play it any other way. It would be nice if they would support the PS3, but that is their decision not to. Maybe if the weren't kind of smug about it or just say hey we don't want to learn how to program for the PS3 people wouldn't hate them so much.
Couldn't have said it better myself.