W.L. Weller... that's the good stuff. the 15yo bottle is two years shy of being the youngest Pappy Van Winkle. same stuff in the barrel, just bottled sooner. I prefer it over the Pappy- it seems to not have the absurd smoke flavor pappy has... i could be easily convinced the 23yo pappy has liquid smoke added. not that it's bad, it's not- it's just right... just not something you'd expect to encounter in a drink. the weller doesn't suffer from that... it's just as good as the pappy but in a different way. pappy with lessor smoke. good stuff.