I'm still sticking to my McCain vs. Edwards in 2008 prediction...despite the gender support she gets, Hillary is unelectable nationally and they know that....which is why they left her off the speaking list and added her later to pacify the fringe element in the DNC.
Think of that as the GOP having Pat Roberson or Pat Buchanon speaking at their convention as they did in the past.....same thing...they're there to pacify the party fringe.
Would I vote for McCain? Maybe....depends on where he is on issues I care about.
Would I vote for Edwards? Maybe...thus far I've liked what I've seen/heard from him...but a lot can happen in this campaign + another four years if the ticket fails.