Ace has more experience as a donut

Sabo

Sabo prob

I'm gonna be real Sabo's probably stronger but Ace went toe to toe with Yamato before he was trained with Whitebeard so like we can't sleep on my boy. Sabo high-extreme diff

Ace mid to low diff. Sabo´s only feats are fighting an admiral not trying,beating up burges, and getting saved by an oldman. In the ace light novel ace has feats of being able to damage whitebeard dodge him with future sight and clash with him sabo has nothing to confidently scale him to ace

Sabo

Do you know how strong Ace is!?

Haoshoku Haki can decide everything.

So Ace mid - diff

Sabo