I believe The Beatles: Rock Band came the closest to being perfect. Eveything about that game was just beautifully done and the only things missing was Pro Drums, an option for Keys, and a few more Beatle songs (Hey Jude, Strawberry Fields Forever, Yesterday etc. etc.)
Hades. I don’t think I’ve come across a game so carefully paced as Hades, both plot-wise and in the gradual introduction of game mechanics. Which is bloody impressive considering that it’s a roguelite.