I don't trust any of them to be honest, on every single issue. but the system has checks and balances in it, and we are far better off defeating Hillary and working with whomever we can elect. Our party stands for nothing if it allows the Clintons to walk back into the white house in 2008. The conservative base can't elect a president on its own, it has to be part of a larger Republican majority.
If She is the nominee then the democrats will win in 2008 period.