A new USA Today/Gallup poll shows potential Republican voters in 2012 rating Mike Huckabee highest among a list of candidates they woud "seriously consider" supporting in 2012. Romney and Palin finish a close second, with Newt coming in fourth:

Next I'm going to read you a list of possible Republican candidates in the 2012 presidential election. Please tell me whether you would, or would not, seriously consider supporting each for president.

Huckabee: 71% would, 25% would not
Romney: 65/31
Palin: 65/33
Gingrich: 60/35
Pawlenty: 32/38
Barbour: 26/52

Among all adults, Huckabee also tops the question of whether the candidates are, or are not, qualified to be president, while Palin slips to fourth:

Huckabee: 50% say qualified, 36% not qualified
Romney: 49/39
Gingrich: 44/46
Palin: 31/62
Pawlenty: 25/51
Barbour: 18/57

(Note: this post has been amended to strike a comparison between the two data sets above.)