i think i like origins the most, but that's only been something i've decided in retrospect... there were a few things that i definitely didn't like while playing it... kevin conroy and mark hamil not being a part of it DEFINITELY bothered me at the time, but troy baker was an excellent joker that definitely grew on me. i also didn't like that it was ANOTHER joker story. joker just keeps showing up and it's getting old hat. when origins was announced and they said that joker was in it, but only played a small role, and that the main villian was black mask, i thought, okay, i'm actually excited by that. but then that was just a big switcheroo and it really annoyed me.
BUT i think it also ended up having a great story between batman and joker... so like i said, at the time i didn't like it so much, but in hindsight i've changed my mind on it