Sometimes some characters are so dastardly, and yet so charismatic that even when they're doing terrible things, you still kind of like them.
Often those characters, at least in romance novels, go through some transformation and end up as the hero or heroine in a future book. Sometimes they're just too bad to be redeemed.
Ava, the character played by Eva Green in Sin City: A Dame to Kill For (opening Friday) seems to be the latter type. She joins the company of Cruella DeVil, Lady MacBeth, and the Marquise de Merteuil (Les Liaisons Dangereuses), among others.
Who's your favorite bad girl?