The ideal solution is domestic partnerships at the federal level -- for ALL people, regardless of their combination of sex. However, the federal government is never going to relinquish the power of marriage. We're stuck with the state regulating a religious issue. Within this framework, the difference between domestic partnerships is mostly emotional. It is incredibly insulting to suggest that something "separate but equal" is a good solution. Beyond that emotional issue, it is unlikely that something intended to be different in name only would only be different in name only.