Here are the thoughts I have on college right now. This is kind of a time capsule post for me.
My top priority is that none of my children, male or female, become debt slaves. Ideally, none of them would marry debt slaves. :P
I think the advantage of a large secular university is being able to tell my kid, "This place is full of people who don't believe what you believe. You must know that the things they think and say and do are not OK for a child of God to think and say and do. Be much more careful than you think you need to be."
I am not sure if a small liberal arts college, "Christian" or not, has a particular advantage. It concerns me that a college with a Christian affiliation may appear to be a safer moral environment than a secular one, when it is only more muddled.
The one advantage I think a Concordia might offer is a higher concentration of potential spouse selection. But the main things Concordias produce are debt slaves, and sometimes also ministry-guilt slaves. I am certain we will tell our kids, "You cannot go to college to become a Lutheran teacher, DCE, DCO, Deaconess, or other made up LCMS-only position." Having attended a Concordia, I also know that they are not "safe" moral environments in dorm, classroom, or professorial office.
Regarding girls, I have no program. At this time, all I can see doing is helping each of our (three) girls consider the question as it applies to each individually. I think it is wise for women to have some kind of training or credential which would enable them to be gainfully employed. NO DEBT SLAVERY.