On your headcanon level. BB backed off because he's a bitch. Kizaru didn't even faze when a younger Rayleigh spawned in front of his face and continued to spar him like it was an everyday thing.
The Admirals have the best portrayal in the fucking manga
Teach, Buggy and Big Meme are jokes
Kaido was good but his crew was 80% trash and he couldn’t kill a single soul
Shanks and his crew are the only solid ones but even they have some "special status"
The Admirals did more in one arc than the entire Yonko's within their own Saga
The Admirals have uniqueness and feel like real characters and are masters in their own field. Each of them has even a different definition of justice.
Admirals carry OP and will also carry the final saga.
Dragon, Mihawk and Akainu are the strongest