Sonic Mania, Mario Odyssey and Crash Bandicoot N.Sane Trilogy are very good but for me the best has been Yooka Laylee. Platformers are one of my favourite genres and I don't recall any really good RPGs that released this year (I haven't played Persona since I haven't enjoyed the previous games) It could be FFXII because really enjoyed it in 2007 but I haven't played the remaster and given its significant changes I can't really say. If releases like Star Ocean 3 count then that game might be my favourite too.
A really good year for games though with BOTW, Horizon Zero Dawn, Nier Automata, Tales of Berseria, Puyo Puyo Tetris, remasters like FFIX, Kingdom Hearts and Wonder Boy plus many others.