Board Thread:Versus Debates/@comment-28300173-20160515033155/@comment-2245550-20160515041502

Either Nagato and Konan or Itachi and Kisame. Nagato is the most powerful, but with Itachi's wits and skill, and Kisame's massive power, it's plausible they will win, since Itachi will get to observe Nagato in action, thus becoming capable of devising a strategy to defeat him.