My favorite by far is the Wildfire rollercoaster at Silverdollar City.
http://www.silverdollarcity.com/rides/wildfire.asp
The best part of this coaster is it sits in the ozark mountains and when you're in the loop, you're so high all you see is blue skies, and trees. It's awesome! It's like flying.
Batman is good too.. I like the loop coasters.