As somebody who practices martial arts for fun, I can tell you that raw physical strength is meaningless on it's own in a fight and women can have just as big of an advantage in a fight as a man if she is trained. Men with large amounts of muscle mass are the easiest to take down because their attacks are so slow. I would encourage any woman that I know to train in martial arts and self defense classes but that's just me.

Regardless, great replies guys even if I might not agree with all of them