I vote private, too. I was too tired after both of my deliveries to care much about socializing. And I would also be concerned about an annoying roommate.
As an aside, how does that work with the buffet line if you are recovering from a c-section or a difficult delivery and are in too much pain to get out of bed yet? Do they refuse to bring your meals to your room? I delivered at different hospitals with my two kids, and neither of them had a set-up like that.
Mommy to
DD1 (12/06)
DS (6/08)
DD2 (10/11)