Siesta Beach in Sarasota, Fla., rates as the top beach in the United States,  Siesta Beach, with its fine, white sand and clear, warm waters, often makes the cut on Dr. Beach’s annual top beaches list, but this is its first year in the No. 1 spot. For 2011 here is the list of top ten best beaches of America according to coastal expert Stephen P. Leatherman. “Dr. Beach,” as Leatherman is known, is the director of Florida International University’s Laboratory for Coastal Research. 09 more top 10 best swimming beaches in the United States, after the break...