An interesting fact: Gail Simone, writer of Batgirl, was "fired" from the title a few months ago. Everybody was shocked, because it had good reviews and very good sales (specially for a non-iconic DC character). The repercussion was so bad, that DC had to hire her again for the title.
Gail now is probably the strongest female writer in mainstream comic books, not only for her talent and work (she spent many years writing Birds of Prey, an all-female group that nobody used to take it seriously), but because of the fanbase she has, mostly from female readers who support her books. I think she really does a very good thing for the media.