Tag because I've still yet to play Odyssey & Galaxy 1 is in my top 5 Mario games. My current 3D Mario ranking:
64 > Galaxy > Galaxy 2 > Sunshine > 3D World > 3D Land
Objectively, Sunshine is for sure the worst 3D Mario, but despite its flaws & several horribly-designed missions/levels, I love its atmosphere/sense of exploration, and it has a lot of nostalgia value for me.