Just to make things clear, I support parity in both name and practice for same-sex and opposite-sex unions. If that means "they're all marriage", great. If that means "they're all civil unions", that's fine too, but I want people to understand that the name has an important meaning in the law here, and it's a meaning that no one wants to lose. Same-sex couples should get spousal privilege, and so should opposite-sex couples, so I'm wary of a solution which has the potential to remove spousal privilege from both of them. Having to clarify that "civil unions have all the privileges of marriage" is less elegant than "it's all marriage".

I have some other ideas in mind with respect to the religious issues, but I'm not going to discuss them right now; need to do more research.