What did the scabbards lack to reopen Oden's scar? Why did Kaido use the same kanji (swordskills)?
So in other words,
Sword skill would be like the scabbards
Hakimanship would be like Primebeard, Roger etc etc
Therefore, Mihawk is superior in a inferior and useless stat
Whilst Shanks is massively superior in the stat that means everything and the absolute thing that decides whos stronger