Really ? Its that simple ? No. Kamui is the key to winning but just because he has it does not mean it will be a guaranteed victory.
Why ? Because madara has everything obito has and more.Who wins in the experience department ? Madara in every aspect.
He has the rinnegan just like obito.He has hashi cells just like obito but he also knows other justu of hashirama obito doesn't.He has shown mokuton but madara has shown various mokuton related techs like the tree flower world.He has perfect susanno.Now since both have hashi dna they both have good stamina but the higher chakra pool obviously goes to madara since he had ems not just a ms.He also has his fan and we all say what that did.On top of all this he has unlimited chakra and cannot die.Now for the final thing is the meteor something obito already admitted to which could kill him at any time.Now after i told you what they both share and what madara has what does obito have ? Kamui and thats it.Kamui like i said earlier will the be the key for his victory but you can't just say kamui as if madara suddenly has no clue how to utilize any of his justu or his fan in way that would stop from obito from
"magically appearing behind him and sucking him up" Sorry that is not how the fight would happen.
why is it that you obito fan boys think madara does not have peripheral vision ?
Kamui kamui kamui is the poorest excuse i have ever seen.
Madara does not have everything Obtio has, he doesn't have Kaumi which is one of the very few ways to stop his kaumi. Just because he has more technique's doesn't mean he wins. Frankly experience is almost irrelevant in that tier.
You've listed technique's such as flower world and perfect susanoo but again they're pointless they're not helping against kaumi.
Where does it state ems gives you more chakra than ms?
His fan is also irrelevant, it reflects attacks like rasengan not Kaumi.
You're wrong about the meteor as well, firstly it should be obvious why since he can turn intangible. He said he could be killed because of the current situation as he can't turn intangible as it severs the connection with the Juubi and ruins the plan, the attack he was refering to that would kill him was the Juubi's tbb made clear in mangapanda's translation of that chapter, then emphasised in the latest chapter when Obito prepared the tbb.
He doesn't need to magically appear behind him, he's already shown he can teleport where he wants freely as well as move underground, it's not that hard to get behind Madara with his skill set as well as already doing it against multiple opponents(Fu and what's his face).
You just sound sore because of how op Kaumi is.