Lady Pendleton and Lady Wade are popular with women. The seat is narrower and the thigh area is scooped out a bit, for women's rounder thighs. But some men like them, too.
Some Ranch saddles, in general, are very wide and round seated, like straddling a barrel. Some of those catch me in the wrong place on my seat bones, and are very painful to ride. Those are "men's saddles."