I've been abused by males as well as females. I've also had horrible, horrible experiences with counselors / therapists in the family therapy setting which were lead by as many females as males.
I had attached to teachers in my high school days, and the 2 I got closest to were male... Where as the one positive social worker I dealt with was female. So, positives came from both genders too.
But, I suppose I prefer females. I connect and open up more with them in the therapy sessions, and I feel they are more understanding of my issues...