I think it tells you something if Hillary with her +10 favorability is leading Bush with his -11 one by only 4 points.
Hillary is a really flawed candidate.
When judging the quality of a candidate, you should probably look at the totality of the evidence, not base it solely on a single NBC/Marist poll of Iowa.
For example, how exactly does this, this, or this jive with your notion that Hillary is a flawed candidate?
In light of her favorability rating, I don't think Clinton's narrow lead against Bush should be attributed to flaws, rather, polarization is probably where the blame should be laid.
