Agreed.
Defeating trash like Jozu means nothing tbh. Jozu merely stepped in to stop a slash aimed at Whitebeard and not to cut Diamond. Same as how Daz Bones stopped a slash aimed at Luffy, but when Mihawk wanted to cut Steel, Daz was one shot.
I dont really think Akainu or the Admirals are all that anymore. Not really sold on Akainu fighting Luffy tooth and nail with Imu in the picture, he's very likely a Sabo/Dragon victim at this rate.
CoC Users like Shanks, Mihawk, Dragon were Top Tiers that Oda had in mind even in East Blue. Introducing them during landmark chapters. Kaidou might really be the only person i'd rank over them.