Indiana's a lot more Republican than Arkansas.
He has amazingly high approval ratings. Arkansas is more conservative than Indiana, but still. Arkansas was Clinton's best state - he won it with over 60%.
Bayh could carry Indiana, I'd say about 55-45.
I think Bayh would carry his home state. He fares pretty well among Indiana's Republicans and conservatives. He would have a pretty good chance of sweeping the entire Midwest region, with the possible exception of Kentucky (although Clinton carried it by are pluralities)
Dave