TSO listed his, here are mine:
Washington D.C.
Boston
San Antonio
San Diego
Everglades City (hardly even a town, and lovely)
Naples, FL.
Well, I guess I don't have ten. I do have a short-list of ciities I would like never to go to again, or in the event that I've never been there, to be spared that ordeal:
Atlantic City
St. Louis
Seattle
New Orleans
Miami
Las Vega
Los Angeles
And may favorite near neighbor city:
Victoria, British Columbia