Batgirl
From Superdickery
Batgirl should not be confused with Bat-Girl, a golden age comics character. (Bat-Girl was blonde, and her true identity was Betty Kane.)
The most famous Batgirl was the caucasian, red-headed Barbara Gordon, niece and adoptive daughter of Commissioner Gordon of the Gotham City police. She looks slightly nerdy out of costume, but is undeniably hot to many. She was crippled a while back by The Joker, and now must get around in a wheelchair. She goes by the code name Oracle these days.
The current Batgirl is a smaller, Asian girl named Cassandra Cain. She is an extremely good fighter. She speaks... broken English because her... father taught her to fight before teaching her to... speak... so that she could... fight better by using the part of her... brain normally used for... speaking. Is now evil or something. No one really understands it.
There is an ongoing fan debate of whether she is hotter than Barbara Gordon or not.