I don't know about that other thread and I don't care about that other thread.Trying to say Tsunade > Itachi is the same thing has trying to say Gaara > Hashirama in that other thread. Too many people write so much when the result should be obvious.
-Tsunade looses no difficulty if there is no information to either side.
-Tsunade can probably break Itachi's sharingan genjutsu
-3T prediction has kept up with much faster people than part 1 Kabuto, Tsunade will have a hard time actually landing a hit on Itachi. You have wrote a lot of things about this but I don't think it will be easy for her to even beat Itachi in taijutsu
-Katusyu will get owned by amaterasu a summon very similar to her already did so there goes a bunch of your arguments. Katsuyu is not indestructible. Katsuyu can get controlled by getnutsu as well
-Tsunade does not have enough speed to avoid amaterasu, she does not even have enough speed feats to land a hit on 3T Itachi. Sharingan can keep up with people who are a lot faster than part 1 Kabuto
-Yin seal is not another being, it does not give you a disturbance in chakra flow. Only Katsuyu can break Tsukuyomi and she has what 1 second to stop it. It doesnt matter how much will power you have, you wont come out good after 72 hours of pure mental torment. Kakashi himself admitted Itachi could have killed him if he wanted to
-Tsunade has no where near enough speed to avoid amaterasu, if she gets hit she is burning aka makes it so much simpler to hit her with another tech. She can't just put amaterasu out as it will burn until it consumed everything. An endless cycle of burning and regen which will only stop when Tsunade runs out of chakra or manage to seal the flames.
-She can't take susanoo at all. She destroyed rib cage susanoo of a clone. Itachi has Totsuka and yata to back him up. Tsunade can only evade but she is not particularly fast and Itachi has sharingan prediction. If both balances each other out then it wouldn't be so hard for Itachi to get a hit off. Itachi also has access to partial susanoo transformations.
-Itachi has access to his KA crow so he can one shot her with the genjutsu.
What I've done here is state things backed-up by the manga.
The result should be obvious why? Just because you say so?
1. But so can Itachi.
2. I have proven how she can break even Tsukyiomi.
3. If you don't think that she's capable that doesn't mean she's actually not. I explained how things work when it comes to ninjas whose base attacks don't consist in speed. If you ignore that and say that they don't work, that doesn't mean it's like you state.
4. Here you prove that you know nothing about Katsuyu's abilities though I put them on your disposal.
Katsuyu would simply get rid of that part by simply splitting that part that's burning and she's done. Not to mention that if Itachi concentrates on Katsuyu he clearly leaves an open attack as we've seen that it takes an amount of time to get the concentration better and the target better fixated. And IF Katsuyu would get controlled (assuming that she's a whole) Tsunade would snap her out of it. That's the advantage of being 2.
5. I already stated that even if she wouldn't avoid Amaterasu she'd still be able to fight given her techniques/resilience and stamina and the way Amaterasu burns. And I already explained that she can use another way to attack Itachi, not just by using speed. Yet you seem to ignore it or you simply don't understand a thing.
5. Yin seal is not another being, of course, but it's an outside source of chakra. And that's all you need in order to break out of genjutsu. If it doesn't matter how much will power you have than I wonder why Kishimoto brought up that line? And why all the people Itachi's used genjutsu on had been mentally weak up to a certain point, meaning he had something against them that he could use. I agree, Itachi could've used Tsunade's fear of blood against her, if she would still have it, but if not, than that means he doesn't have a thing to take her out with.
If you decide to ignore that as well, once again, it's your problem. It doesn't mean it's not there.
6. Than it means that Madara is a lier and that wasn't his Susanoo. Go argue with him.
The Susanoo clones were after she landed that hit on Susanoo and Madara concluded her strenght.
I already took into consideration Yata and Totsuka and I've said that IF he manages to avoid them given her resilience and stamina that are far superior than Itachi's, it's good, if not she gets sealed.
Once again you didn't read anything properly.
If you say she doesn't have the speed to do it than you clearly didn't read and understood nothing about evasion.
Itachi's lucky here by having Totsuka and Yata and that's why at first I gave it to him and then explained how she could get away, cause if he wouldn't have Totsuka and Yata, he'd be done.
And regarding Itachi's crow, that does't work like that and you know it.