My latest Amazon order is Avatar: The Last Airbender - The Complete Book 2 Collection. Yes, it's an animated kid's show on Nickelodeon, but it's a superior example of the genre. The people who came up with the ideas for the show were very creative, and the animation and voice acting are first-rate.
I got The Complete Book 1 Collection, which was the first season (20 episodes), a while back and thoroughly enjoyed it. I should have Book 2 sometime in the next few days.