Kidding, right? Jiraiya. Sannin, fire jutsu, toad summons, toad based jutsu, the list goes on. Kakashi has Mange Sharingan, Dimensional Doujutsu (which he could barely use three times, and can't aim as accurately as an Uchiha), Ninken, ANBU techniques, and some espionage jutsu. I say Jiraiya.