Who can defeat the 9 tailed fox?

The fourth Hokage was capable of sealing the fox which could be technically considered a defeat. Naruto has also sealed the fox, but in a different way. The first Hokage almost surely would have been able to defeat it and Madara forced his will on it. Finally the original ninja the sage of the six paths could defeat the 9 tailed because he, at one time controled all the biiju formed together.