Mihawk, Akainu, Rayleigh, Shiki, Big Mom, Sengoku, Garp, Kizaru, Dragon, Aokiji, Kong, Gorosei - lots of characters were omitted. Probably due to Kaido never having fought them.
To be fair, him mentioned the navy admirals/top members while calling how much Luffy going celling wouldn´t make sense, in case Luffy is a pirate and it would make sense for Kaido to mentioned only the strongest one.
Im sure guys like Garp/Sengoku/Akainu are above Oden, but didn´t get mentioned, even though Prime Garp and Roger beat up Xebec,Whitebeard,Linlin and Kaido. So you can assume if Kaido would mean it overall, Garp would be sure in the list, same for Sengoku.
And why he not mentioned Mihawk? Probably he don´t see them as pirate since they beeing the dogs of the WG.
Big mom was next standing to him and always get portrayal almost equal so you can assume she would be in the list too.
So the only one left are other pirates like Rayleigh and Shiki.
The question is where you guys place Oden,Rayleigh and Shiki in a directly encounter?
Kaido could probably not meat Rayleigh in god valley(with I doubt though) but Shiki as crewmember and know pirate should be know in powerlvl for Kaido. Since Xebec is in the top five pirate list of Kaido too, why he wouldn´t mentioned Shiki?
Is Oden legit above Shiki and Rayleigh?