Gulliani or McCaine are the only ones who I can see taking this on....Allen would be roadkill.
If Rudy ever got the nomination, this conservative and a whole host of others would simply stay home (I wouldn't even waste my time voting 3rd party).
If I wanted Hillary's policies on social issues, I'd vote for her, whats the point of voting for someone who agrees with Hillary on about 50% to 60% of the issues?
I can't even see conservatives voting for McCain (I sure as hell wouldn't).
If the recipe for Hillary losing is electing a liberal, then there is no point in voting in the first place.
Very few Americans (outside their respective home states) heard of Jimmy Carter and Bill Clinton less than a year before each man was elected president.