Underconsideration/Brand New declared the evolutionary change of Starbucks as the best identity in 2011. I tend to agree although I could have also gone for Voices of Youth.
http://www.underconsideration.com/brandnew/archives/the_best_and_worst_identities_of_2011_part_ii_the_best.php
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Here is also the worst http://www.underconsideration.com/brandnew/archives/the_best_and_worst_identities_of_2011_part_i_the_worst.php
Swiss should probably be #1, for ruining a great, iconic logo...