Well, the big question that (I assume) everybody is talking about is who would win in a Ham Contest: Iron Will, from My Little Pony: Friendship is Magic, or The Boulder, from Avatar: The Last Airbender? It's a riddle for the ages, to be sure.
On the one hand, if The Boulder tries to block, Iron Will would presumably show him that Iron Will ROCKS. But on the other hand, The Boulder could very well BURY Iron Will in a ROCKALANCHE.
This is a difficult puzzle, and I'll have to think it over further before I draw my conclusion.