Ulti said queen is so noisy, and then who'who asking the flying six if queen dead, who is able to replaced him. Black Maria answered if Who'Who should take the position (its indicated he might be the strongest among the flying six). X-Drake not interested, and sasaki kinda blame page one.
She asked him that not coz she implies Who WHo is the strongest
Her question indicates that Who Who thinks he will be next. Not that he's truly the strongest or whatever.
That's why she says "tu crois que ça serait toi, pas vrai ?"
Which is " you really think/believe it will be you, right?
Who's who thinks it'll be him, I guess he's like Pero , maybe he's the eldest Flyer
From how oda wrote them,
Sasaki or Drake is the strongest, none really cares about Queen position.