Although technically Jack is bourbon (contains at least 51% corn in the mash), philosophically it's Tenessee whiskey. Bourbon comes from Bourbon County, Kentucky. My favorite bourbon, these days, is Labrot & Graham's Woodford Reserve http://www.woodfordreserve.com/). Reasonably priced (for a single-barrel bourbon), reasonably available, 90-proof.
Yeah, but what do the Brits know about whiskey? They can't even spell "color"! -- Rick