Coincidentally, I tend to write descriptive paragraphs, and I am a massive Otaku. So, I think I can probably help you out. I haven't watched Avatar though, since i don't consider it an Anime. Let me know if you want to come up with something.
Oh, and some Animes I think would be very interesting to game are (I'll think of more later, these are just on the top of my head):
Full Metal Panic
Shana/Index/Hayate (Lumped due to voice actors)