Well, I finished 100%'ing Galaxy this weekend, which means that now all 3 games on Super Mario 3D All-Stars are at 100%. I think that now, having replayed Sunshine recently (as it was the game I hadn't played in the longest time), I can say my personal list for 3D Mario games I enjoyed the most, from most to least, would be:
1. Odyssey
2. Galaxy
3. 64
4. Galaxy 2
5. 3D World
6. 3D Land
7. Sunshine
I had forgotten how janky Sunshine's mechanics are, and the Blue Coin system is literally the worst thing ever conceived in a Mario game. Still a fun game and it has a unique charm, but it's definitely my least favorite of the 3D Mario games.