Okay, so one of the things i love best about this toon was the way in which it had a subtle commentary on gender roles. I know, u may ask "so, what?" of "why is this important?" Well, I'll tell you.
Often, females are portrayed as supporting characters to the all-important male protagonist. Here, this is not the case. While i am indeed a guy, i like to see that screenwriters have progressive attitudes when it comes to gender roles. If u notice, Katara is the one who brings Aang along with her, not the other way around. Often, she plays the teacher and not the damsel in distress.