Killer B - Will lose to itachi, he thinks he can get out of tsukyomi any time after his encounter with sasuke, he doesnt know itachi's tsukyomi is 500x stronger and faster,
Kisame- Isnt fast enough to dodge a amaterasu, and would just die right there
jiraiya- Once again, if itachi wanted to kill this dude, all he has to do is amaterasu when he's in base... just like when they were in the hallway......
Izuna- you don't even know his ms jutsu.. or anything... how can he theoretically beat itachi?
muu , mizukage, oonoki , no iddea who would win, i won't go as far as to say they can beat them, but they most likely have fought uchiha before.... oonoki having fought madara already,
Shisui-agreed, kA would beat him, but itachi has knowledge of the jutsu, i doubt he'd stand right there and allow it to be used on him, Still , i give shishui this win
Third raikage-tsukyomi - dead. He may be physically durable, but psychological damage , is a whole different ball game, only tsunade is able to heal that
Hashirama
Tobirama
I give those two the win, simply because they were the strongest senju, who fought uchiha on a daily basis, would have seen madara's sussano , and possibly have counters for it , :/ but then again itachi has yata mirror.. so i really don't know
Hiruzen- In prime, he shouldn't be stupid enough to lock into itachi's eyes, but... if he doesn't look into itachi's eyes, he can't fight properly, and would be open to amaterasu...
A-can't come up with any argument on how itachi would beat him without blaze release
Minato- From what he's shown, he doesn't have anything to break itachi's sussano,rasengan would do absolutely nothing to yata mirror, also itachi has shown nothing to be able to hit minato, unless he gets rid of his ftg kunai somehow