Overconfident by a country mile. She doesn't have to be better than them for her power to work. She doesn't have to be top 1 and she doesn't have to win your heart. If she's attractive enough that you would think, even for a moment, "hey she's kind of cute", her power would work. And I'm sorry, but whatever a real life Hancock would look like, the bust size alone is at least enough for that. Ya'll pretend like you're some big badass who only has time for the best of the best ladies, but in reality, a real life Hancock would be 100× more attractive than any woman you could realistically get, because literally any manga character that's supposed to be hot would be.