It's not about roleplay... it's about looking at nice features while playing
LOL, the last toon that got me excited was Vampirella (circa 1969). Although Holli Would and Jessica Rabbit are honorable mentions...
On the serious side, I created a female character on LOTRO just because it fit the character better than being male. It's difficult to play because as soon as the char steps out, she's surrounded by weirdos. If I create a female char, I don't go out of my way to make her sexy, but it still draws too much unnecessary attention. Just my experience.