Romney, a former governor of Massachusetts, leads former Arkansas Gov. Huckabee 33 percent to 27 percent, while former Alaska Gov. Palin is in third place with 23 percent in a Public Policy Polling survey, The Hill reported Monday.
Romney tops Huckabee in every region of the country except the South, where Huckabee's home field advantage puts him in the lead, The Hill said.
In the South, Huckabee scored 37 percent in the poll over Palin's 25 percent with Romney in third place.
The poll gathered numbers for only those three potential candidates and did not include other possible aspirants such as Minnesota Gov. Tim Pawlenty, The Hill said.
No margin of error figure or other polling details were reported.