So so much of what you have said here is wrong I dont even know where to begin. You say he wasnt using KA? then what the hell was he using? oh right just that other genjutsu that exists which can control people without them even noticing :sy:
Yes, I do think Shisui is capable of that and his eye holds the genjutsu capable of that. Either he's using that kind of genjutsu, or it's KA in a much much weaker, downgraded form for multiple uses.
I have said it before and ill say it again, it was plot no jutsu pure and simple that Danzo was not in the top ranks of most powerful ninja in the series. You say he must have been stupid not to use it to gain the hokage position earlier and I completely agree, that it was S rank plot no jutsu which made sure he wasnt.
You can pin plot on things you don't like, but this still happened. If Danzo could have used it to its full potential he would have, it's a fairly simple concept. Either that, or he's retarded.
And I agree, Danzo is incredibly powerful, one of the strongest for sure. But he can't compare to
the strongest(bar Rikudou Sage and the obvious).
You also make claims that he cant use the technique on Shisui's level, which is wrong. In his fight against Sasuke he was saving KA for Tobi. He had complete confidence that saving KA for tobi was a good idea because he knew that with sasuke out of the way, he could just cast it on tobi practically instantly winning.
When did he say this? I actually recall something similar but don't remember exactly. This also is contradictory to your first claims. If Danzo was actually using Kotoamatsukami on the others, there's no way he was "saving KA for Tobi" here.
It is also not a matter of whether the doujutsu is superior, as it is not the eye itself it is the technique which actually matters. And saying that Madara was the strongest genjutsu user is just pure BS. Neither nagato or madara would be able to break out of KA, it is the Ultimate genjutsu
It is actually, the EMS is a far far upgraded version of the regular Mangekyou Sharingan. It's the two MS users eyes in combination, essentially. Madara is the most skilled genjutsu user, Uchiha and sharingan wielder in the manga, no if's and's or but's about it. Regardless if EMS
was irrelevant, I fail to see how Shisui's MS genjutsu would be as effective on the top tier Madara Uchiha, with the greatest genjutsu skill in the manga, and to add to his EMS, the Rinnegan both.
You also state that someone with actual genjutsu defence would have a chance against it....no. Edo Itachi (one of the characters with the highest genjutsu defence in the manga) was easily broken out of ET and given a specific one off order. If it still works so well on someone of that genjutsu calibur, then it will work against madara who has one small genjutsu feat against a fodder ninja.
When has Itachi actually shown a genjutsu
defense? Well, as I said, Itachi had no reason to break out of this considering if he did, he would be placed back under Kabuto's control. Madara's genjutsu skill is
far superior to Itachi's, again, so that's fairly irrelevant as well.
To your last statement, Danzo is the leader of root. Of course he is going to have sealing jutsu :flaw:
Ha, oh yeah. Point taken. =P