@@sophiec67 azula and zaheer are talented but zaheer is far more than that he became the strongest air bender in very short time ... azula got her skills from birth and yet there's stronger fire benders
Zaheer is not the most powerful air bender. When he fights Tenzin he lost without the help of his teammates. Personally Amon is my favorite villain but between Azula and Zaheer, Azula is a better bender.
And despite losing everything and everyone and being imprisoned forever his spirit is still stronger than the walls of Ba Sing See. Also I've noticed this during Zaheers duel with Tenzin: Whilst Tenzin was flying and tornadoing to upper floors, Zaheer was jumping and climbing while boosting it with his bending. Furthermore his air bending attacks were not like Aangs or any other airbenders. He was just using bending to boost his long developed martial arts. Despite being undoubtedly high-skilled, talented, spiritualy and mentaly strong, quick-learning and the fact he developed his own highly leathal air bending technique he is still fighting like a non-bender instead of a full fledged bender.
Zaheer showed us aang never really used offensive aggressive airbending which makes sense cause aang never went off like zaheer did it’d be out of character
The good thing is that the avatar franchise makes the best villians you will ever see in your life. They gave us TLoK and that took a Miracle to not flop it, let alone make good characters and personalities