User blog comment:Arrow7000/Avatar Aang vs. Lord Voldemort/@comment-4661256-20120527013837

My vote goes to Voldemort. Hayden basically summed up my thoughts, but the biggest factor here that I find important to point out is the fact that Aang has nothing on Voldemort that Voldemort can't whip aside with his wand (or without it, for that matter) and throw back at him in an even more lethal dose. Aang is a pacifist, and even though Shaolin vs. Maori proved that pacifist doesn't mean doomed to failure, Voldemort is the anti-pacifist. He doesn't want to fight; he wants to kill. There is a difference, and if all he's throwing is Avada Kedavra's and launching balls of Fiendfyre that water WON'T put out (meaning Aang's waterbending is useless against it), plus earth manipulation, teleportation, etc. it just means that while Aang is fighting Voldemort, Voldemort is killing Aang. Also, psychological factor time. Voldemort has proven to murder children in cold blood, and Aang is a child. Aang won't be expecting Voldemort to attack back with such ferocity, and he won't expect Voldemort to possess the full extent of powers he has. Finally, Aang is a kid and he could be frightened by Voldemort's physical appearance: Voldemort scared people who had heard of him, never mind someone who's gonna see Mr. No-Nose for the first time.

Aang pacifist nature and Voldemort's anti-pacifist mindset, plus the fact that Voldemort will surprise Aang physically and psychically, and the fact that Voldemort's range of abilities are more diverse and instantly lethal than those of Aang's, mean that in a man vs. child fight, ruthless Voldemort will send Aang to his grave.