What? Ace spent a few years on WBs ship.
Yamato spent all her life with Kaido.
Ace was growing
That's why Ace became Marco level after just a year with WB
Reminder, he spent like 6 months or a year chasing Teach so he only spent 1 year max with wB on the ship.
Ace was gonna be Low top or mid top if he was alive.
Yamato spent 20 years fighting Kaido and became this strong
Ace in just year fighting wB, Became high high tier ,imagine another 2 years, he'll be Too tier.
Ace shares the highest potential with Luffy and Sabo