It's just so tough to beat Splatoween. Immaculate theming all around, and of course Deepers Creepers is a jam. Great topic, to boot.
FrostyFest also does a great job of hitting its theme, and I absolutely love Yule Tide, but it just doesn't have the je ne sais quoi of Splatoween, y'know?
Springfest wasn't bad, and I appreciate the early-evening vibe they were going with for that one, but the lobby music became grating real quick and I wasn't very invested in the topic, either.
Summer Nights hits its theme well - I especially love Big Man's outfit. I just don't like summer very much, and the topic isn't very captivating either. Best ink effect by a landslide, though, it's absolutely gorgeous.