Board Thread:Versus Debates/@comment-26636534-20160221130323/@comment-1751565-20160416124728

Honestly Gai wins this. Gai wont fall for Tsukuyomi nor any Genjutsus due to his training against battling Sharingan; in Taijutsu, Gai would eventually overpower Itachi- he has way more Stamina than Itachi and thus more Chakra. Both their Summoning Jutsus bring forth worthless animals (turtles and crows) so we wont count those, ...once Itachi pulls out the MS Sharingan,Gai will enter 8 Gates Mode, which he does at once to the 6th Gate. Gai would use the Asakujaku, Itachi uses Susannoo which defends against it.

Against Amaterasu, I say Gai would be able to dodge it if he uses the Teleportation Jutsu in Gates Mode (similar to how the Raikage used it). Against Susanoo, Gai would have to up his power to the 7th Gate and use Hirudora, which we all have seen that a Weakened one was able to shatter Madara's Susanoo. Itachi's Yata Mirror guards Ninjustu but al Gai's hits are Tai (which is what did in Kisame), so it will shatter that Defense...I have not even gotten to the Last Gate.

Anyways, Itachi might be able to survive if he uses Izanagi on himself and takes Gai by surprise...which then n there (since Gai would be weakened by the Gates), he would die.