Board Thread:Versus Debates/@comment-43973072-20200409172413

Not entirely sure if this is allowed, but... I'm going for it. Assuming Shisui can now use susanoo in its complete form with the eternal, Kakashi has little to no experience using susanoo while Shisui at least used it against danzo. He knows how to use the tsukumo at least but since they are probably easily blocked with the susanoo, the tsukumo is kind of useless. Since Minato agreed that Kamui is superior to flying raijin, Kakashi would win short term by spamming kamui everywhere but he's too smart to do that, Kakashi's intellect won't let him be so unconservative so if the fight were extended, Shisui might land either kotoamatsukami or one of his more powerful jutsus. We only see a short period of Shisui's life so it's probably safe to assume he has something up his sleeve other than kotoamatsukami. Ao wouldn't have scarpered if the only thing Shisui had going was his tanto and his fireballs with body flicker since kotoamatsukami isn't going to be used against a scout party. Since Kamui uses probably lots of chakra being a mangekyo move, Shisui can body flicker with much less chakra and therefore be able to survive an extended fight better. So, I say short term Kakashi wins, long term Shisui. 