Ok, I'll bite. I liked:

From TPM: Maul (needed a bigger part though, and speaking). Also liked qui-gon and obi-wan although their roles should have been reversed IMO. I liked the destroyer droids and enjoyed Ian Mcdirmids performance as senator palpatine/sidious, also enjoyed the intro to coruscant. thats it.

AOTC: enjoyed Christopher Lee's scenes as count dooku(hate the name). Loved Kamino and the mystery of the clone facilities. thats it.

ROTS: again, enjoyed Christopher Lee's scenes, the duel at the beginning. i liked the scene where anakin and padme are staring out into coruscant from the jedi temple and her apt. respectively, right before he decides to take matters into his own hands to help palpatine. liked the yoda vs sidious duel, but hate the way it ended. thats it.