If Rudy runs, he'd be the favorite to win the New Hampshire Primary.
He would be a lock for most if not all of the Northeast states. I would think he would do well in the large Midwest states also.
He'd be the favorite for California.
Most importantly, he's supporting Republican candidates all over the country this year and making LOTS of friends.
I think Rudy is the favorite to win the nomination if he runs. I don't see anyone out there at this point who could beat him.
BUT, as a poster said, it's still early.
He and McCain could split a similar vote in NH.
But if he won NH, any candidate the extreme Right would use to prevent him getting the nomination, if they succeed, will get killed in November.