Published: Mar 21, 2013 6:30 AM EDT

          TALLAHASSEE, Fla. (AP) - A new poll shows Democrat Hillary Clinton is a heavy early favorite among Florida voters in a hypothetical 2016 presidential matchup against former Gov. Jeb Bush or U.S. Sen. Marco Rubio.
    
Clinton has a double-digit lead over both of the Florida Republicans in a random telephone survey of 1,000 of the state's registered voters by Quinnipiac University taken March 13-18.
    
The survey shows Clinton favored over Bush 51 percent to 40 percent. Florida voters prefer her to Rubio 52 percent to 41 percent, if the election were held now. The survey has a margin of error of plus or minus 3.1 percentage points.
    
The former secretary of state, New York senator and first lady was regarded favorably by 62 percent of the respondents, including 26 percent of Republicans and 57 percent of independents.