Sports. Basically all sub-genres within it too. I was all about the more realistic sim Madden/FIFA/PES in college (actually going back to NHL 94 and others on SNES), loved the arcade-y NBA Street, NHL Hitz, NFL Blitz series for the longest time and then THPS and SSX were some of my favorites in the PS2 era. Hell I grew up on Ice Hockey and Tecmo Bowl. Something happened where the extreme sports pushed towards realism, the sim sports got stagnant, and they honestly stopped making good quick-play arcade sports (minus Super Mega Baseball).
I've also been less into actual sports and local multiplayer as I've gotten older so that's contributed. But I used to be a yearly iteration guy.
Shame, I genuinely think the genre has gotten weaker/worse since the PS2/PS3 era.