Board Thread:Versus Debates/@comment-29769110-20170327210757/@comment-28247797-20170419041748

Madara wins handidly for a few reasons. Madara quickly deduced the ability of Obito's eye and knew that it offered intangibility but it's weakness is that he's vulnerable when he goes for an attack. Madara is quicker and a better tactician than Obito, he'd simply exploit the fact that Obito can't harm him unless in return he made himself vulnerable.

Itachi is no diff, Madara could do anything to destroy him. Summon PS and stomp onto him. Also for those arguing that Madara would run out of "juice." Please keep in mind that he fought Hashirama for 24 hours while using PS and wielding the Kyuubi. Especially considering Itachi has horrible stamina so if anyone would get outlasted it'd certainly be Itachi.