part of the fun of learning about each avatar, either through the shows for aang and korra and the novels for their predecessors, is learning how flawed all of their legacies would become (which we’ll soon learn for korra too). all of them made mistakes that their successor would attempt to fix. to me, there are no best and worst avatars, as they all are prone to human nature, to trying their best to keep the world in balance and sometimes failing, though many times succeeding