In a general election, I think most people whose ideology will NOT allow them to vote for Barack Obama, will hold their nose and vote for Romney. However, he has to get past the Republican-only primaries where someone like Newt is pandering to the dreams of past glories of the 'space race' in Florida, or where he went after much more baser instincts in South Carolina, and I have no reason to believe that this 'tuning of the message for where I'm at today' will continue as long as Newt can stay in the race.
But if I were a betting man, I'd place the money on Mitt to 'show' (get the GOP nomination) but on Obama to 'win' in the end.
Does that meet your criteria as an acceptable response in terms of a 'data point' in your survey?