Hancock: "Who is the one…who put a little girl in my path...?"
Bonney: "That'd be me!" Ages herself back to normal and youth-anizes (harhar) Hancock
Bonney: "Hah. Not so tough now, are you Miss Pirate Empress!"
Hancock: Acts cute
Bonney: "So cuuute!"
Hancock: "Mero Mero MERROW!"
Bonney: Petrifies
Hancock: Kick
I want to like Bonney, and I hope that she manages to escape from wherever Akainu has her imprisoned and comes back with a vengeance in the New World, but as of yet there is little-to-nothing to go on with regards to her other than an apparent connection to Ace/Whitebeard and an apparent history with the Marines/World Government. That in and of itself is not enough to get her my vote...
Hancock proved herself quite capable of living up to her Shichibukai title during the War at Marineford, making her (as far as I know) the strongest female character in the series to date. And while she can be annoying with regards to her crush on Luffy, I can forgive that, seeing as it is almost certainly a "first love" scenario for her, having been enslaved so young and putting on the emotionless "Ice Queen" facade for so long. Like Jinbe, even if she doesn't show up again for quite some time, I fully expect Hancock will play an important role in the future.
Ergo, Imma voting for Hammock!