>>79
action-adventure
you best be fucking joking, man. Grim Fandango, Monkey Island, Toonstruck, Sam & Max Hit the Road, Day of the Tentacle - all PC games, the best action adventure games ever made.
fighting
you only think that because you're too used to using a console controller. I'd take Street Fighter on PC over Street Fighter on a console any day of the week. If you don't like the key mapping then you can easily change it.
Racing and platforming games are probably the same, but i don't play them because they suck.