Best widely distributed beer...?

Most beers taste like piss (Budweiser, Bud Light, Icehouse, Miller Light, Coors Light...). Miller High Life and Pabst Blue Ribbon are the only 2 beers that I have found that I can actually drink. What are some good beers that I can buy from Food Lion grocery store? Samuel Adams? Heineken? Guinness? I have never tried anything like that...