Latest numbers from the University of Cincinnati's Ohio Poll. MoE +/- 3.4%. (September results in parenthesis)
Lieberman 18 (22)
Don't Know 16 (16)
Gephardt 14 (14)
Kucinich 12 (12)
Dean 9 (9)
Kerry 9 (8)
Sharpton 6 (6)
Clark 6 (3)
Braun 4 (6)
Edwards 1 (1)
Ohio has a March 2 primary, hence it should have some say in chosing the eventual nominee. Of course, most of these candidates will be gone once March 2 rolls around...
(Numbers from Polling Report)