I play almost everything tbh, from western rpgs to shooters, its hard to choose one as i get "seasonal cravings" i switch from one genre to another and focus on games from that genre from time to time.
The ones who suck most of my time are either ARPGS, MMOs and Bethesda's open world stuff.
I have a huge soft spot for metroidvanias and stealth games, specially metal gear.
The games who have sucked the most of my time ever are WOW, Skyrim (mod addict), Fallout 4 (because mods), PSO2, Dynasty Warriors Gundam, Gundam Breaker, Metal Gear and Castlevania (as franchises) in that order.
Havent played much of "pure" light novels and its my least liked videogame genre i need some action in between, like what Blazblue or Fate/Extella do.