I have had a number of female developers over the years in the NWN 1 era of online servers. Matter of fact I would like a couple for the current project. From my experience the female players and developers seem to be very interested in the type of games that have a lot of character options as well as being not so brutally competitive. I despise shooters for this reason…and so do most females. SWTOR and LoTRO (I should think WoW does as well) have quite a number of female players that I know and associate with. I believe we would certainly see many more female developers if the game style fit what they like.
As to my personal reference here is that a female artist/developer has a very unique attention to detail that males will just brush over. The end result is prettier and detailed art. I really like that…and it has always had a spot in my heart. If I could I would have a large team of females. 