@Franky:
It'd be interesting to see how women interract with someone like BB.
I'm sure women love Blackbeard.
With his Yami Yami powers, he probably keeps a fairly tidy household. Too many empty rum bottles in the trash can? Black Hole them away!
He's smart enough to know that Shichibukai is where to be in terms of establishing a long-term career path.
He clearly has ambitions larger than watching his favourite football team win the championship.
Those shiny rings on his hands suggest he's got money.
While over-the-top and boisterous, he's probably fun to be around. I'd also expect he'd make extremely grand gestures. "I blasted an island bare just to clear a path for you to walk, my dear…"
There are worse choices in the One Piece world.
Some of the big figures are so one-track-minded, they'll never be distracted to find love. i. e. Smoker, Lucci, Zoro
Some would be more interested in a mate for nonromantic reasons (Vivi for political benefits, Nami for financial ones)
Some are too thick to do anything but clumsy romance (Luffy)
Some will two, three, and six-time you (Sanji)
Some will fail miserably in presentation (Robin, Wanze, Bon Kurei)