The national exit poll shows that Hillary would have defeated McCain by 11 points nationally.
Clinton 52
McCain 41
Wouldn't have vote 5
Should would have done about as well or better than Obama, she just would have done it in different places.
Considering the national polls (the average of them all, at least) got Obama's margin right (~6+), I'll take that value (Clinton+11) with some level of confidence.Such polls are meaningless, because people weren't exposed to an actual Clinton-McCain campaign. They can only make guesses as to how they would have reacted to such a campaign. No one has been running negative ads against Hillary Clinton for the last six months, so it doesn't surprise me that she might have inflated numbers right now.