Shooting Illustrated has a good article on right gun for women. They actually asked 5 women to fire 7 different guns and got their opinion.
One of things men tend to forget(or not lsiten to) is that what men assume about women may not be correct. Some jerks would hand over a .44 magnum just for laugh and video, but it is far more reasonable to let the woman choose what she likes.
From: Shooting Illustrated