So which one is more logical to you:
Queen knows people like Marco, Kid, Law, Denjiro are invading Onigashima yet he puts #2 and #3 guys as Drake and Zolo. Drake being higher than Zolo by your logic.
Meaning Drake is stronger than everyone previously mentioned and only 2nd to Luffy.
or
Queen is talking about the Strawhat crew, Sanji and Zolo. Panel of Sanji and Zolo posters also matches Queen's talking point. And it wouldn't mean they are the strongest in the alliance.