to be honest for this fight to be truly "E.P.I.C." they must be willing to destroy each other in this fight.
think about how weak this fight will be if naruto is still in that "bring back sasuke" attitude and sasuke is non-chalante about the whole thing.
It will be more satisfying if their fighting each other to the death and is pulling out all that they have to destroy each other THAT WOULD MAKE THE FIGHT E.P.I.C.
now its up to kishi to make it so that they hav a reason to kill each other besides i really want to see sasuke tottally lose it( jus like itachi, deidara, hidan, and oro did )