All Might vs Deku, but both in their prime
Deku. Because um. Spoilers. He also knows all of All Might’s moveset. And One for All is a stockpiling quirk. So by default in their prime he would be stronger because he would have the strength of all the previous holders (including All Might) and his own on top of that! So yeah. Deku.
But also, they would never--except in that one test I guess. But it was a school exam so does that really count?








