A month ago I would have said absolutely, now I'm not so sure. Romney is, in my opinion, the most personally likable of the candidates, but in order to get the nomination, he has had to run to the right and at least sound more conservative on issues. This doesn't come across to voters in a credible fashion.
Even if he is able to pull this off successfully enough to win the nomination, he then has to try and run back to the center to compete against Obama in the general election. This is a tricky dance for anyone, and so far, Romney isn't placing his steps.
He has the most money, he has the delegate lead, he has the only real ground organization (besides Ron Paul, who can't win). So OK, he is the best of the current field, but he is also damaged at this point, and headed for a long, expensive nomination contest. I think that's a fatal wound for this election.