Board Thread:Versus Debates/@comment-26636534-20160221130323/@comment-26773508-20160223085207

Guy should take this with 7th Gate at most, IMO. Guy has crazy strength and speed with his gates. Itachi will find it very difficult to keep up with Guy. Also, it's highly likely that Guy will break Itachi's Armoured Susanoo with Hirudora, unless it is countered by Yata Mirror. But there is no evidence whatsoever that Yata Mirror is omnidirectional, so Guy can attack the Susanoo from behind. Also, even if it's healthy Itachi, he still has stamina issues. Guys wartime feats prove that he's wayyyy more durable than Itachi even with the gates on.

As for you, MIGshinobi, you're comparing the feats of a Hagoromo-enhanced Sasgay with a comparatively normal shinobi like Guy. The fight with Juubito clearly shows how durable a Juubi Jinchuriki is. And Madara was the superior Juubi Jinchuriki, not Obito. So that feat of "normal" chidori chopping Madara into half was almost definitely because of Rikudo enhancements. If that wasn't the case, then Sasgay's feat is a huge Plot Hole no Jutsu. The only sensible way to explain this away is that Sasgay's Rikudo enhancements did the job. Just because the "normal" chidori didn't appear black doesn't mean that the Rikudo enhancements didn't play a role. It almost certainly did, otherwise it's a huge, gaping plot hole.

So if Guy can wreck Juubidara's body without senjutsu or Rikudo enhancements, then Itachi's Susanoo can be wrecked as well.