Oddly, and I know this is kinda anecdotal... But it seems like great big (tall, muscular) guys get all the teeny tiny women.... I was big and wide shouldered in my day, and most of my girlfriends were under 5'8 Many under 5'1.
The tall gals, who would LOVE to go out with a monster guy, but usually get stuck with the average guy and fight the height thing all the way along
And the little bitty dudes ... The little wild-eyed spring steel and rawhide ones... They always have the supersize fat chicks.... And that is their preference.
Don't ask me why... 
@roamer_1 THEY are PRECISELY the one you need to avoid pissing off and starting a fight with. I don't know why this is true,but it seems to me like those boys just don't have a back-up button on them,and you damn near have to kill one to get away from them.
And if you DO manage to knock one of these adreneline-powered skinny boys out,you damn sure need to get away before he becomes conscious again because you are in for "Round Two" if he can find you once he gets back on his feet.
I have no freaking idea where all that strength and determination comes from,but they have it.