Abraxas Imperial Stout and Barrel Aged Abraxas Imperial Stout. The beers are more legendary than the Midwest brewery who creates them. In fact, they rank among the best Imperial Stouts in the world on Untappd AND BeerAdvocate. And they've helped Missouri's Perennial climb to the top of the craft ranks as one of the best breweries in the country. Hype: One of the 10 Best Breweries in America by VinePair; Named Craft Beer & Brewing's "Breakout Brewer!"