Living in the cradle of bourbon (Kentucky), I've been very fortunate enough to accumulate a nice variety. My absolute favorite HAS to be Pappy Van Winkle 20 year Bourbon. I think I came close to tears when trying that bad boy. Booker's and Baker's are also very very nice. Strong, but nice.
Aside from the bourbons, I've got a bottle of Lagavulin 16, a bottle of Balvenie 17 year and some Johnnie Walker Green.