The most limited production of these four beers, and available only in Chicago, but I swear that has nothing to do with this ranking. The key is that Proprietor's — made with chipotle peppers and cacao nibs and aged in bourbon barrels that previously held maple syrup — has the most of what a 13 percent stout needs: body. The huge aroma of pepper and dark chocolate is backed up by a thick, velvety body due mostly to the cocoa nibs within. The flavor? Chocolate, pepper (with a hint of smokiness), more chocolate and a long spicy pepper finish. The best beers tell a story, and Prop does it: heat and sweet, in beautiful harmony. This is the opposite of a beer to taste in a 2-ounce pour at a festival and then rate on an app. Proprietor's is something to sip and savor by the fire.