Except for winning competitions, is there any natural advantage of bodybuilding for both men and women? For both, for advantage in most sports and attractiveness the typical calisthenics physique, sort of gymnast/football(soccer) one seems like the ideal one to me, yet a lot of people seem to be obsessed with getting overly buff.
By bodybuilding, you probably mean steroid-fueled muscle building. Most natural body-building will never reach that level. On the other way, there is plenty of good health reasons to train with weights, and build a good/solid muscle mass. It also improves a lot of other aspects in your life (social). So, weight-training, bodybuilding - lite is great. Steroid ladden/extreme body building one is probably not healthy.
Steroids are not necessarily always bad, tho taking your body to the extremes of competitive bodybuilding probably is.