Well the way you said the third raikage would get out of genjutsu is false. First off, Tsukuyomi cannot be broken that way. Secondly the third raikage is not disrupting his chakra flow with raiton armor. Raiton armor is lightning augmenting his physical attributes. It is basically a full body version of chidori. Once the chakra is made into lightning it is no longer chakra and thus has no way to affect the genjutsu. Not that a constant flow of chakra would do anything to disrupt genjutsu anyway.Now let me ask you what makes you say no for Minato, fastest shinobi in naruto, very intelligent, high ninjutsu and taijutsu, greatest reflex in naruto, create very powerful jutsu might even have more up his sleeves, he was also known to be very skill in space-time jutsu, and we all know it's one of the hardest jutsu to beat (example Tobi), he has high knowledge and use of sealing jutsu explain. I'm no fanboy but this match is still undecided until we know full even half of Minato's strength.
No For Hiruzen who was known as the god of shinobi, who defeated the first, second and orochimaru, and he was old. Can your precious Itachi do that? explain.
No for the third raikage who went toe-to-toe with eight tails, fought 10,000 men army for 3 days, was extremely fast. you think amaterasu will win, nope he can evade it. Tshukuyomi nope the amount of chakra going through him he can disrupt it, and susanoo he can just break it or penetrate him with his fingers.
Nagato easily please, I don't dislike Itachi, he's in my second favorit ninja after Jiraiya boy, but this match wouldn't go easily at all. Itachi is at least knowledgeable with his sith paths, so Itachi would have a chance to beat him. Not a big chance, but we know Itachi is very smart so he could find a way. I would say mostly Nagato, but this fight could go both ways, but extremely hard for both fighters.
Naruto (SM) I'm still not sure about that. We know Naruto is not the genjutsu type and has no mean to defend against it, and Itachi is a genjutsu master, the best out there, so I would say no, maybe Naruto Km.
Sasuke (ems) maybe, I don't think Sasuke is going to get any new powers except now he can use his powers more better. Could go both ways
I am more likely to say that you're a fanboy, and this thread is missing people that can beat Itachi such as A, Jiraiya, Orochimaru, maybe Danzo, we don't know anything of Sakumo Hatake maybe. I won't have time to explain but yes don't underestimate shinobis, you should've learned that since the first naruto.
Secondly you seem not to know about Itachi's Susanoo. It has the Yata mirror, which contains any possible elements and is immune to any elemental attacks (it also works as a regular shield though) and so the third raikage's finger sword would be utterly useless and would be like someone poking Susanoo. The Yata mirror also makes Dust release useless.
Secondly you say that Hiruzen defeated Oro+ Hashi+ Tobirama. Well that in itself is a fallacy. Hiruzen actually died there while Oro lived. Now matter what way you spin it that is a win for Oro. If you think about it Hiruzen has no defense against most of Itachi's abilities.