Today's Fox News/Opinion Dynamics poll finds that Mitt Romney and Joe Biden are the favorites among voters.

McCain: More Likely/Less Likely/No Difference
Mitt Romney: 29-30-37
Joe Lieberman: 20-38-35
Tom Ridge: 18-33-39

Among Independents, Romney leads Lieberman 20-18. Among Republicans, Romney leads Ridge 49-27.

Obama: More Likely/Less Likely/No Difference
Joe Biden: 27-25-35
Evan Bayh: 20-29-40
Tim Kaine: 17-32-40

Among Independents, Biden has 23% versus 15% for Bayh and 13% for Kaine. Among Democrats, Biden has 45% versus 32% for Bayh and 29% for Kaine.