I'm pretty good at RPGs, they're sort of my bread and butter. Grew up playing them.

Shooters? Meh~ I'd like to think I'm only really average at them with the occasional lucky hot streak when it comes to multiplayer. Often in single player I can manage to do the mode just above normal, but below the insane master skill level type difficulty.

Ah, the RTS. A genre that I'm constantly interested in but can never seem to be good at. My only real strategy in many RTS games that I play in single player mode is to amass as big an army as possible and go towards the objective. I can't even stand a fighting chance to those who compete in multiplayer.
Racing games? Well I never really tried them so much. I'd like to think I'm average in that area too based on the little experience I've had playing them.
Sports games? I'm pretty good at most of those too.

At least against the AI I am. x3 I tried online multiplayer once. It did not go well.
Overall I think I'm able to easily breeze through most games on the normal difficulty, but I'm only pretty average as an online gamer in most genres.
Except the RTS... Oh how I can never seem to wrap my head around a strategy more complex than build and go to the objective destroying anything in my path. xD