NE KY somewhere? Shedd is well worth the money. I haven't been to Georgia but the know several that have and they enjoyed it also. I think it depends on ones level of interest also. If you like aquariums versus you like aquariums/ichthyologist/etc... My wife, kids, friends, family are like that is a neat fish/aquarium and move one where I could spend several days or more at these places. I was rushed at Shedd and didn't get to spend the time I like looking at things.
As far as aquariums go Monterey Bay, Georgia, and Shedd are considered the top three hands down, here in the states. Depending on where you live you could double up... Georgia for instance because you could also stop by Tennessee Aquarium in Chattanooga, TN. It is a very nice aquarium also and has some nice display of natives.