I can't fathom how anyone could read that Sanji/Queen fight and be like : "Yup these guys are definitely stronger than Doflamingo and Dressrosa Luffy who wrecked an entire country with city level attacks"
The Size of 1 hand is bigger than the arena in which Luffy fought almost like a small city...1 punch made all colosseum fighter fly just from the shock wave. But hey Pica is folder right?