that makes NO sense. firstly, we dont know how he lost. secondly, who is to say he will simply make the same mistake again and not come up with a counter strategy? we dont know if he can uze izanagi or izanami. which dont require rinnegan
he was sealed by itachi because he was controlled and facing 3 kage levels at once.
he couldnt before. what makes you think he can now?
why do peopel assume if he cna do it once he must be able to do it again? whatever tricks he used, madara wont fall for them twice. hashirama thinks he killed madara, he died thinking hed killed him. what else did the world get wrong about that fight?
A weak legend then
So I'm going to quote myself from a thread showing some of Madara's prowess. 
His katon could be easily avoided by Minato who is easily the fastest ninja ever, or simply teleported like he did with TBB, what i think you must know is much more powerfulYou know not of which you speak of my friend.
His katon could be easily avoided by Minato who is easily the fastest ninja ever, or simply teleported like he did with TBB, what i think you must know is much more powerful
He never use tsukiyomi in fight so far i know. That means it's not his fighting style. The only problem could be Susanoo, but Minato has shown he was capable to teleport Kyubi without touching him, meaning there is a range where he can teleport humans or objects, so he can actually do something like that.
Don't also forget what Minato said when he thought Tobi was Madara. He said: "it doesn't matter who you are", meaning that "whether you are Madara or not, i'm still gonna beat you" And Minato is a very knowledgeable ninja. Proof is that he knew that Madara can't control Kyubi for too long. So with all knowledge he had from Madara, he said it doesn't matter, meaning there could be no problem
madara unlocked rinnegan at the end of his (very long if im right about my calculations) life
he couldnt last time with kurama under his control. what makes you think he even has a prayer without it?
like he did last time? OH WAIT.
actually we dont know what happened. it was a fight to the death, and hashriama was bleeding heavily, and couldnt use one of his eyes. kushina stated hashirama gained control over kurama during the battle, and minato said madara cant control kurama for very long. meaning it was actually hashirama and kurama vs madara all alone. and hashirama still could not finish the job. the world thinks he won because they thought he killed madara.
if he didnt have kurama, then hashirama wouldnt have been able to steal control and use it on him. without kurama, madara and hashirama fought constantly and were unabel to kill each other.
he didnt want to win. he wanted hashiramas living tissue that ended up as either becoming zetsu or the hashirama in tobis basement. all to get the rinnegan.
how could you possibly know that? they were equal rivals and enemies of senju looked to uchihas to fight them for them. thats because uchihas won some of the battles. the only reason hashirama was picked as hokage was his unique bijuu manipulating skills.
why do you think izuna let him have his eyes? because madara knew hashirama would destroy the uchihas if madara wasnt around to protect them.
is it? then why was he getting famous during his battles with him if he was humilated every time? thats nothing to be proud of. and itachi said madara was overpowering everyone with his EMS. as i said we dont know how these battles went especially the final one. maybe hashirama won by luck or by outsmarting him. maybe they knocked each other out and people assumed hashi won as madara faked his death to escape with hashiramas living tissue/powers. at the least hashirama was pushed to his limit every time they fought.
If he was able to turn madara own weapon on him that shows just how much better than madara he is, you say he didn't want to win but apparently he lost every time, why would he suffer another defeat when he knows he obviously can't win? so he at least not "if" but WHEN he lost(or rather by surviving the fight he knows he would gain something of higher value than just taking another lost empty handed thats probably why he brought kurama to assure that) he'll at least have the requirements for rinnegan,madara lost he got kurama striped from him during the battle and got defeated, hashirama had a shit load of skill and knows very well of what he was doing, besides you talk about finishing the job and shit, tell me this what point did hashirama have for trashing madara? because he already was hokage, he stood at the top of the ninja as the strongest ninja of his, era, he was well respected by everyone even by his enemys, he mastered in ninjutsu,taijutsu,and genjutsu, and wood release, hashirama needed no luck to be beat madara, thats the other way around madaras the underdog in the equation thats why he got kurama because his powers by themselves don't match to hashirama's,at the end of the fight madara was probably using his hate for hashirama to keep himself alive did you see the condition he was in? when he had all those swords in him? thats not faking your death thats barely holding on, and why would madara protect the uchihas when he hated them for turning their backs on him?and if "protecting them" was the case how can he protect them when he can barely protect himself against hashirama?and **** itachi madara he said he lost,thats the point madara came back stronger each time and still lost, its a curse of hatred is why madara would keep going back to try and defeat hashirama even if he loses keeps losing,because hashirama is just simply better than madara, thats how the story says it and madara even admits its, btw how do you know hashirama was pushed to the limit everytime they fought when madara only fought with kurama once? for all you know the time madara fought hashirama with kurama was probably the only time hashirama had a extremely difficult time dealing with him, and basically your telling me that hashirama had to fight solo against the both of them at the same time for an extended period of time BEFORE he gained control of kurama and won and madara with all these gifted talents and EMS still couldn't win? thats rather pathetic dude no matter how you look at. hashirama>madara its sad but its true.