The portrayal of equality on this show is absolutely incredible. Avatar: The Last Airbender, and Avatar: The Legend of Korra has managed to equate everyone onto a level playing field.
In the world of Avatar, the only thing that matters is the heart and the drive to fight for what you believe in.
The fact that they went out of their way to have men and women fighting together was amazing. This show took it even further. They have created characters that are physically disabled in some way. Teo was paralyzed. Toph was blind. And Ming-Hua has no arms. However, in the world of Avatar, these people are not disabled or handicapped. They are fighters. They are a threat.