In your OP, you claimed "Kabuto said that no one could reach Hashiramas level anymore", when all he said was that there was no-one on his level anymore. There is actually a big difference between what you said and what the manga said. Also, I do believe Nagato was sealed at this point, so that quote would not have included him or many other ninja who had come before.
Dan's comment is so irrelevant. Dan does not know about Edo Madara's powerups. He only knows Madara in his EMS form, so of course he's going to say only Hashirama can stop him, because Hashirama defeated EMS Madara at VOTE. Dan's comment in no way implies that Hashirama > Edo Madara, or that Hashirama is on such a level.
Do you have any evidence that Hashirama's Mokuton > Madara's? Not saying you're wrong, just asking for some evidence.
Your final line is actually quite pathetic, because Nagato was a self proclaimed God and was called the 3rd Sage of 6 Paths. That alone trumps what was said about Hashirama.
Not saying Hashirama is weak or anything, but this thread is just there to turn the heads of the weakminded because of some poor wording and presentation of outright false statements.