California Sen. Dianne Feinstein would be the clear favorite in a Democratic primary for governor in 2010 if she chooses to make the run according to a Field poll conducted Feb. 20 - March 1.

Attorney General Jerry Brown and Los Angeles Mayor Antonio Villaraigosa tie for second at 16 percent and San Francisco Mayor Gavin Newsom registers 10 percent. All others are in single digits.

Should Feinstein not run, Brown would be out front by 26 percent followed by Villaraigosa at 22 percent, Newsom at 16 percent and Lt. Gov. John Garamendi at 8 percent.