My favourite genre. Any Compile Heart/Idea Factory games: Death End, Mary Skelter, and especially the Neptunia franchise. Bandai Namco's Tales of franchise, with Vesperia as my current favourite. Gust's Atelier, and Ar Tonelico series, with Atelier Sophie: The Alchemist of the Mysterious Book, and Ar Nosurge: Ode to an Unborn Star respectively. And finally, NIS' Disgaea games, with Disgaea 4 at the top.
I have been a fan of all five of Lucas Arts' (and Square Enix's) Monkey Island games, with The Curse of Monkey Island, and Tales of Monkey Island as my favourites.