Yawn. Every pundit has an opinion and every pundit will continue to have an opinion. Too early to make any predictions of strengths or weaknesses of anyone. Lots can change in a few months.
This article rings true for Romney though and is actually a common summary of him, because it fits his entire political history.
Romney has been in active, office seeking politics for almost 20 years, in that time he has won, one election (spending massively), that was with 50% of the vote, he gave up on running for reelection because of his own weak polling, he left that office with a dismal 34% approval rating from his constituents.
For 2008 he spent almost 150 million dollars against no one, and 50 million of that was his own money which means that he was getting maximum benefit from it, by using it at the perfect moments, and at times of weak donations, yet his showing was lame and weak.
In 2011, his shallow, weak, front runner status again seems to reflect that consistent lack of support and his inability to win over voters, people just don't like, or trust, Mitt. Romney is not a vote getter, nor a ticket leader.