People are misunderstanding something about Toph. She is the most technical earthbender, feels and bends the earth with precision and punctuality. But she is not the most powerful earthbender.
I believe that Bumi is a much more powerful bender than her. . . he said it himself to Aang, that he was the most powerful earthbender that Aang would ever met (although, it was only him talking, I still believe he is). :yeah: