Favourites: JRPGs, WRPGs (less so Bioware, more so Bethesda), SRPGs, Shmups (particularly those with plot and/or waifus), grand strategy, 4K, any wrestling game with good wrestler creation, any fighting games with a good cast of waifus, any roguelikes with plot/waifus, first-person dungeon crawlers (eastern only), rhythm games (especially Taiko no Tatsujin), and visual novels (but yanderes and snuff are no-nos, meaning no School Days). Any game with strong mod support and potential (aka memes and waifus) is an instant favourite.
Least Favourites: Racing (too monotonous), (F/T)PS (barring Gun Gal), raising sims (barring Digimon World n0), survival horror (barring Until Dawn), VR games with too much movement (nausea), MOBAs.