I think female Preds should be left shrouded in mystery, OR you come up with something really good. It would take some work and creativity to come up with something unique and good when it comes to a female Predator.
The whole comic book idea of them being bigger and stronger than the males (and throwing them around during mating...) to me is kind of a ridiculous concept. Not that I'd have any problems with females being the dominant sex of a species, but I don't think it fits here. It fits insects, but not Predators IMO. Maybe it's because we are used to human males being stronger than females, and the Predator is depicted so far as a humanoid creature. I do want the Predator to be more "alien", but not from that gender point of view.