Seriously? I really like Shido's Palace. I just didn't like the mouse bits, but I like going around searching for your targets, and I really liked the theme of a cruise ship. And the music is fantastic (especially the boss fight music <3). It's probably my second favorite, first being Sae's. I guess my least favorite would be Futaba's Palace because I expected challenging puzzles and fun traps, but all I got was tedious puzzles and linear progression in the form of traps. Lame.