Girls:
1.) If you had to become pregnant today by a friend, whose child would you want to raise? Who is he for you and why did you pick him?
My friend James. We've slept together before so we have that knowledge of each other. He's a super nice guy and has a good job so there's security there for the child.
2.) Will he want a relationship and care for your kid?
I'm sure he would, he's a pretty classy guy.
3.) If this applied to all women, how many girls would he likely impregnate?
Probably his most recent ex. 
Heartbreak there.
4.) Estimate: How many of your friends would want to impregnate you?
Oh god. Sleep with? A lot. Impregnate? Maybe a couple but I have no idea who.