EDIT - Out of the choices, I'd guess Ohio.
Ohio. Ain't even a contest
I'm going to have to go with Ohio as well. My dad's family is from Columbus and all of them are pretty progressive people.
Do any of them having court challenges in the system?
All of them pretty recently upheld their gay marriage bans. In the case of the red strip there (Michigan, Ohio, Kentucky, Tennessee), it looks like the Supreme Court will take the case later this year, but no guarantees yet.