There's no question that Clinton's views on Iraq are tilted more towards hawkishness than many of us would like, but I've noted before that the criteria I'm going to use to evaluate her performance is Israel. My sense of the conflict is that, though there are many obstacles to peace, domestic US politics in the form of AIPAC has always been the elephant in the room. There are signs the group itself is moderating, the political environment has become much more favorable for diplomatic work and the Clinton's have the credibility and gravitas to work on a two state solution without worrying about upsetting right-wing Jews.
Clinton believed in Presidential destiny, and not content to just be a Senator from New York, Hillary Clinton can certainly translate this desire 'go big' into another realm by solving the dominant problem in the Middle East. I hope she does.