Samuel Adams beer is better than most of the mass-produced American swill but I still prefer true craft beer to any of the brands most supermarkets carry. The problem there is that the best craft brewery will vary depending on what part of the country you are in.
For my money, the best year-round beer that Samuel Adams (aka Boston Beer Company) makes is the black lager.
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"The cat is the most ruthless, most terrifying of animals." - Spock in the "Catspaw" episode of ToS Season 2.