FWIW, when we were expecting our first, we wanted a boy, but only because having one would give us the opportunity to perform the mitzvah of pidyon haben. After we had our oldest (who was a boy), we then wanted a girl. When our second turned out to be a boy, we wanted our third one to be a girl (which she was).
We only had three children. However, if we expected another child, I would not have a preference as to the gender of the child.
The Wolf