I dont think Godparents have to be a couple. Where I am from I guess it is not just who gets the child on the parents passing, as this is not that likely to happen in most cases, but rather who will be able to guide the child through their life. My Godparents.. especially my Godmothers were very instrumental in shaping me into the strong woman i am today.So I guess you can consider who willnot only love and care for your kids best if something should happen, but who you can most rely on for support as you raise your child. Who do you see them guiding them best if your child turns to them for help.
I agree with puck, it is not about your friends. If they are real friends they will be pseudo auntie and uncles and love the child regardless.
Good luck
