The things that made Hashirama OP, which I love btw, is how he personally obtained Sage Mode himself. He didn’t train with a Toad or a snake nor did was he handed it on a silver platter and taught by an instructor. That mofo just pulled it out of his hat like he’d been doing that shit for decades prior. Similarly, Madara called forth those meteors out of the sky like nothing too. But I digress...
OT: Chakra reserve wise, nope. ‘God of shinobi tier’ absolutely not. SP and the gang can try to drown you with their “next generation surpasses the previous,” but in actuality no one truly has. Hashirama was so powerful that he relied solely on his OWN power, no human will surpass him without having his DNA intertwined within them in someway, shape or form; I promise. Except Madara if he was serious. :Sparks: