in a new SUSA poll. All other Rs lose to Hillary and Obama. Here's the summary:
Clinton vs:
McCain +2
Huck -1
Rudy -8
Romney -8
Obama vs:
McCain +7
Huck 0
Rudy -8
Romney -12
Specifically, McCain leads Obama 50-43 and Obama beats Romney 51-39. That's a 19 point difference from the most electable to least electable in OH. These numbers are similar to this summary of more head-to-head state polling.