Im a bigger hashirama supporter (look at my history), but... ima have to say nagato with the 6 paths of pain fighting first! if you say nagato vs so and so, you have to put the 6 paths first then opponent finds/fights the real nagato. simple as that. if any body want to argue go ahead... ill help you out with some feats i research on hashirama that he might have (backed up ofc), good luck..
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