Anyone who has been role playing long enough has probably played in most genres...fantasy, medieval, science fiction, space opera, spy games, horror, etc, etc.

What's your favorite genre, and why?

I'll go first...most of my role playing over the years has been in fantasy settings, but my favorite is probably space opera. I've always been a fan of that sort of story, and have a lot of fun playing characters in those settings.

A very close second is horror games, primarily Call of Cthulhu. It's a lot of fun to go into a game knowing that your character will probably die or go insane. Takes a lot of the pressure off, so you can just enjoy playing, and be pleasantly surprised if your character survives.