Mepal, that is truly dependant on the depth of ones knowledge. I have had the pleasure of having great female halacha teachers as well as male (and some terrible ones in both categories as well).
I find the WORST teachers are the ones who have no concept of the variety of halachic opinions. We may generally follow one opinion, but there are always other piskei halacha out there. Rarely should things be taught in such absolute as that is not really the Torah way. Halacha should be understood as a progression, the way it evolved.