Dio Exodus
I love that he still has the worst win-loss record in the series of any main character, and LoK is continuing this tradition.
lol that is so true
rofl
Although, I think it is mainly because he started out as an antagonist, so naturally he had to lose to Aang all the time. Otherwise he would have captured the Avatar and the story would have taken a wildly different turn...
Then he gets overshadowed by Azula as an antagonist, and to show how much more of threat she is she beats him in pretty much every fight they have.
And then even when he joins the gaang he gets taken out by combustion man xD
And Azula, again.
So yeah, his track record in winning fights is terrible.