Not sure how I feel about female doctor & did suggest on the thread about the previous series that it could be the way the writers are going, seeing as his companion is a lesbian (thus keeping the attraction/chemistry between them)
That said, I always thought LORDS were male & the females are...
http://www.northstandchat.com/showthread.php?350788-Doctor-Who-(May-Contain-A-Spoiler)&p=7982066#post7982066
Post #21.
Wow I have actually got a prediction right for once