im going to have to say shikamaru bc his IQ is freakin 200 but the next would have to be naruto bc hes a fuking smart bastard whne it comes to batte l fro instance the battle wit kiba he was so fukin kewl man changed into akamaru well kiba to be exact and confused him the the battle wit neiji he made a cone just in time so that he could dig under ground and attack neiji makin neiji think that teh clone was him