I LOVE Avatar. It is one of those rare cartoons that has the drama, the comedy, genuine character development, real emotion, and a fantastic plot combined with top rate animation. I also like that the story has a definite beginning, middle, and end. One of my favorite TV shows.

The sequel, Legend of Korra, is also very good. The hero is older and the tone of the story matches that, losing some of the childlike playfulness of Aang and the Gang (also a cool 70s band).