With Mike Huckabee out of the race for the 2012 GOP presidential nomination, three known politicians, Mitt Romney, Sarah Palin, and Newt Gingrich emerge as leaders in Republicans' preferences... Palin's support is more intense. A higher percentage of Republicans have strongly favorable opinions than is the case for the other two, giving her a slightly higher overall Positive Intensity Score despite her higher strongly unfavorable percentage. Gingrich and Romney have similar Positive Intensity Scores. ...There is no clear front-runner in the race for the 2012 Republican nomination. Palin, who has given no indication of whether she will run for the...