I agree with karagnostic and cannot believe this is even a question. Today one is not mor desireable that the other. It is what an individual prefers.
In the olden days, Males=money. They grow up, work the fields, caary your family name etc.
Girls =expenses. They cannot work, so they are an extra mouth to feed, they have dowries which equates to the male getting more money and they do not carry your family name. This is common sense, and those who think you need miforshim on this; i guess lack this common sense. I wonder when pure human intellect was thrown out the window?