AA and JTs

[PolishSwatTeam]

I recently had an arguement with a poker buddy who said that JTs is the best hand in poker. I went on to argue that AA would beat JTs over 50% of the time in heads up, Because a pair is usually enough to win in that situation. It would depend how many people are in the hand and what the situation was, but I still don't agree with him. Is there any validity to what he is saying?