I have only visited Jim Beam which I enjoyed, but unlike some of the other distillers they did not have an actual tour of the distillery - they have since introduced the distillery tours.

I have heard from many folks that Makers Mark is the most impressive of the distillers to tour, so will be doing that one soon.

Don't forget to visit the Belle of Louisville.

 

That sounds awesome ! drink a Makers mark neat for me if you get to there distillery.