"Common sense" says a mother and father is best, but the studies show that having two loving parents is what matters, with no difference in outcome depending on gender.
God would be to differ. Mom/Dad not dad/dad or mom/mom.
No marriage or adoptions for the GLBT period end of story.
Every psychological study in the history of ever trumps your religious beliefs.
Yup.
A lot of those studies may be biased. In fact I once found a study that basiclly said "kids are better off with two moms because women are more nurturing and men aren't"