u guyzz are ignorant, n dont u guyzz watch the anime madara wanted shisui eyezz for that jutsu so obviosly he cant do it, shisui is the greatest genjutsu user the uchiha clan would ever have, n even itachi`s genjutsu`s were superior to madara`s
actually pretty much everything you said right here is untrue.
1. shisui was at the time the best genjutsu user in uchiha, it didnt say history
2. itachi's genjutsu was never said to be superior to madara's genjutsu
3. madara controlled yagura (mizukage) with a jutsu similar to kotoamatsukami
ok here is why i think madara would win.
1. he is the greatest uchiha in history and has been around for a long time so he would know all about the sharingan's abilities and he knows about shisui's so i dont think he would be caught off guard with it.
2. madara has better mastery of sharingan and assumingly MS and EMS
3. he has the rinnegan
4. he has the jinchuuriki's as paths
i'm sorry but i dont care how many times shisui can use that jutsu i dont think it would work on madara. he knows about the jutsu so i'd assume that he has a way to counter it. if you go back and look at danzo's fight against sasuke madara was not afraid of shisui's eye that danzo had. madara may have wanted it but he was not afraid of it nor was he afraid of fighting danzo. this tells me he has a way to counter it.