I just finished my rewatch of Avatar: The Last Airbender and what an incredible ride it is. I remember seeing it years ago when it first premiered and it still holds up very well. The setting, the lore, the action, the story, and most importantly, the characters. Aang, Katara, Sokka, Toph, Zuko, Iroh, Suki, etc. They make it great. Avatar is by the far the best thing Nickelodeon has ever put out. I'll for sure be watching it again soon.