Romney is as acceptable to conservative Republicans and independents as he is to moderate/ liberal leaning ones. None of the other candidates can say that. And that kind of broad appeal (or at least acceptability) will steam roll Obama in a general election. The problem with primaries (historically, especially Democrat primaries) is that they tend to select candidates that are closer to the more extreme ideology of the party than they are to the middle of the electorate. Romney's numbers, the fact that he has been vetted by Senatorial, Gubernatorial and a previous Presidential primary, plus his ability to raise money, are making this November look like a walkover.