Out of these choices, CoD fans. Just accept it people, some people (including myself) actually HATE MW2. Impossible I know. That being said, I still play CoD1 from time to time, and everyone on there is pretty nice. Now I know why it's the only great CoD game.
Overall, MGS fans are the worst. I'm a fan of Metal Gear Solid the game, not the series. I hate MGS 2-4, but I love MGS1. I'm often told that I'm an idiot for liking the worst in the series. Well excuse me if I like intuitive controls, a comprehensible story, good voice acting, and a script that doesn't suck. I guess I'm just 1-in-a-million.