Battle 1: I have to give it to team One Piece. Marco was besting Kizaru, who can move at light speed (albeit he doesn't most of the time) and he has hax regeneration, as well as flight. No jutsu would keep Marco at bay for long and he could unleash haki infused attacks against Hashirama. It is similar with Ace. He is intangible and can unleash attacks that can engulf half a small island. Then you have Jozu who is so strong and durable that no wood could contain him. In short, the 3 of them would be too much. Battle 2: he already beat Madara but without his wood idk. Battle 3: he would lose. The nature of Whitebeard's power isn't well suited for him. White beard creates pure force, in quantities large enough to tip or destroy whole islands. Strong as his defense may be, Hashirama never showed the ability to counter such an attack. Battle 4: As he already defeated a full powered Kurama, taking out Naruto who has only partly mastered Kurama's power should be no problem. Battle 5: is hard to say. Hashirama bea Madara and Madara is matching all 5 of them, but he does have the Edo tensei on his side and he has the rinnegan which he didn't have when he fought Hashirama, so it's fairly unclear whether he would win or lose. Battle 6: he should beat current Tobi. Even though Tobi essentially has the same base abilities that current Madara has, plus 7 biju, he has shown a strange degree of incompetence when fighting and though he has always won when he fought thus far one way or another, he always seems to win by the skin of his teeth and always manages to be harmed even by those notably beneath his level. Battle 7: Luffy needs to show more but I don't know that he could beat Hashirama. It's unclear at the moment. Battle 8: Hashirama wins. He already beat Madara who was experienced with the ems and had the ability to summon Kurama, while Sasuke only just achieved the level and has no summons that compare to a biju, let alone the to Biju Kurama.