I used to love Sasuke, then he became revenge obsessed, indecisive, and kind of a douche bag. 

Oh same here. I'm so an Itachi fangirl. I could name some characters that Masashi couldn't make me love ever though.

Kabuto
Orochimaru
Tobi/Madara/No One/Obito/No Face/Whatever the hell he feels like being at any given point in time.

Yeah, I hate those guys so much.