I felt that way until Itachi and Naruto agreed the best way to protect someone is to kill them. It never made sense. At least he admitted to his brother he was wrong (even though he was still ignoring his desperate plea). Itachi and Danzo are the only characters I dont really like. Even Tobi who I never liked before (especially after murdering Konan) got a bit of my sympathy. Also Karin who was a b*tch to the Cat Lady got my sympathy when she was betrayed.
Besides the above mentioned, I would be happy with any character.
Can't go wrong with a Naruto character (as long as they don't kill their own, in which case makes for a developed story)