In One Piece Lol. Literally Whitebeard’s lowest ranked commander was portrayed on par with the other scabbards, and Akainu solo’d all of Whitebeard’s commanders and was winning.
Also, Akainu had help from half of the Marines. You say that the Marines = all 4 Yonko crews, so according to you, Akainu should have been receiving help from 2 Yonko crews