Lessee... I'll just spoiler mark my list.
START-Cornell had a cool voice actor. He was neat.
-The entire scarecrow/Baba Yaga/music box segment. Oozed with the kind of spooky atmosphere I wish this game had more of. Castlevania should be about dark, creepy countryside, not goblins, daytime and... uh... more goblins. Also loved the Headless Burrower for this same reason.
-The Necromancer had a fucking badass voice actor. Too bad he has like four lines. ???
-The skeletons are hilarious in this game. Not only the cute cutscene in which you see the first one, but their tornado-of-bones attack is all around incredibly lulz. (Just as an aside I liked how the game had different strategies for killing enemies; it reminded me of Zelda in that way.)
-Evil Butcher segment was incredibly sinister. Loved how he belches and sticks the pot on his head for some reason.
-The Dracolich was pretty cool looking, but it was too bad that it was by far the easiest boss fight in the game for me.
-The staircase.
-The REAL bits of platforming (honest to god jumping from platform to platform) in the Clock Tower. More of this, please!
-Not entirely a good thing but the whole plot arc reminded me heavily of Ghouls 'n' Ghosts.
END