I don't care what the odds say, Poochy is going to win this, that thing moves faster than any of them when it gets going.... which is why I hate the level, Poochy Ain't Stupid, in Yoshi's Island. -_-
They're all hardcore, that we can agree on. However, Amaterasu will win in a race, she can slow down time arround her. Cheap? Yes. Effective? Definately.
Ammy isn't carrying much load so even without using her brush she has a big advantage. Link probably comes in third because I have no idea who/what poochy is and the one from ToV is over strained (dead last)