Sports genre: fifa, madden, nba. I found it stupid just for the fact that a year later you are the proud owner of a dated piece of crap that no one wants to play anymore, though i enjoy kicking my friend's ass in fifa (in their house and in their console) because that's the only game they are good at and i still beat them without training (pure gamer instinct there :) ). The exception here are mario sports games, those are great, i have hundreds of hours on mario strikers
guitar hero genre(?): i practically wrote the south park episode about guitar hero, for me it's really stupid to buy some expensive toy guitar to learn some stupid patterns that only work there, for that i better play an actual guitar
FPS: most of them tend to give me motion sickness and are almost always about the same stereotypical badass dude in the middle of a badass war trying to kill badass enemies. The huge exception here is the metroid prime saga, those are the only FPS i have truly enjoyed
Life simulation: my own life it's interesting enough for me to feel the need of simulate another life
