Our group did Buffalo Trace, Woodford Reserve, Four Roses, and Three Boys. We paid a tour guide to drive us around and glad we did as she allowed beverages on the road.
Buffalo Trace - The longest tour, got to see a good handful of buildings and everyone on the tour has the offer to purchase a bottle of EH Taylor small batch at the end for the standard price. I would say this was my favorite tour
Woodford Reserve - I will never forget the smell of walking through the building with 7,500 gallon fermenter tanks, amazing.
Four Roses - Sat at tables in a room of roughly 10 folks sampling their boubons, the most basic "tour" we did.
Three Boys - This was off the beaten path that our tour guide offered to take us to. We were reluctant but were really glad we went. Essentially a mom n pop shop in the middle of nowhere, coolest part was you can sample different burbons right out of the barrels and then fill your own bottle.