I don't really care that much if someone's a PC gamer or a Console gamer; hell, most of my friends have got Xboxs/PS3s or Wii's. (This is from my, a PC's, view)
The only reason I would have to resent Console gamers would be that (in my experiance) often get good games on thier system released before PC's, therefore ruining the story for me due to thier blabbing. Example in point; Batman: Arkham Asylum. PS3's and Xbox's got it 3 weeks before PC, for porting reasons (clarification needed), and i'm not even mentioning the Joker map packs that the PS3 had, man those looked good.
Another example; Assassin's Creed II, released for Xbox and PS3 November 20th, whilst the PC version is coming 4 months later. Gee, thanks.
But apart from that, I have no problem at all with the actual people playing on the consoles.