I was with you until you said, "thus is probably well suited to make children." - because in fact, this is not the case. Women who are best suited for bearing children are usually healthy in weight and wider hips. This is not considered 'attractive'. But again, personal preference, ie. different strokes for different folks.
Note: healthy in weight, meaning, overweight.
But I guess the same goes for how women see men. Its all in the eye of the beholder. Some women like to dig for gold, and some men like to large canyons on small frames, and nothing in the grey matter.