Every candidate has their weaknesses. None of them are all that good. You can make a case for each one of them not getting the votes of x demographic.
If Newt wins the nomination, he will be able to articulate why everyone (including women) should vote for him and not vote for the Marxist. None of the others can.
Sorry.
I would vote for a serial killer over Obama.
hat being said. Huntsman, Santorum, Paul, and Bachmann are our best bets IMHO