Dunkin Donuts came out on top in the Brandkeys 2010 Customer Loyalty Engagement Index for coffee, beating out Starbucks and McDonald's java. Sam Adams came in second only to Budweiser in the beer category... but Walmart, McDonald's, IHOP and Domino's also won their respective categories, possibly raising questions about the taste level of these customers. The index is based on psychological assessments of consumer's beliefs about brands, as well as direct ratings. Blogs have not yet made the brand loyalty list. [Brandkeys]
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