That's a special case since Blackbeard basically did nothing but fight with Whitebeard for 20 years prior to that. Look at Shanks, Whitebeard, Kaido and Big Mom's bounties, they're all higher than the Admirals'
So basically, if we are going to use this to put Sakazuki above the Yonko and on par with or relative to Roger and Primebeard, then we have to use it to also put the Admirals below the Yonko. You can not have one without the other.
Now, I'm fine with it being normal Admirals < or <= Yonko < or <= Sakazuki. But what I want to know is if you guys (referring to Admiral fans mostly) are.