Oldandsickbeard >>> Kaido >= LinLin
Akainu > Kaido
Powerscaling, for me, never changed, is just that many of you failed to realize that there was a large gap between WB and the rest of the pirates of the world, this is why he had to be removed.
Also the admirals are disciplined militars, they are athlete and knows how to move, protect themselves, kite the enemy if necessary. LinLin and Kaido are not, they are two brute monsters who knows just how to hit blows and endure until they win using their massive destructive power.
This is why even if less powerful in terms of ap and stamina, Kizaru would be an harder match up than LinLin or even Kaido for 1-hit-ko fighters like top tiers swordsmen.