To me, Detroit is clearly #3. Then you can toss around Philadelphia, Kansas City, Cleveland, Cincinnati, Pittsburgh, Boston, Baltimore, San Francisco, and Buffalo. Los Angeles has some fantastic low-rise buildings as do Tulsa, Dallas, St. Louis, Seattle, and yes, Houston. Per capita, Buffalo has a very strong showing as do Kansas City and
Youngstown.
And though my
other city may only have one prewar skyscraper (talking over 300 feet), I think she's a beaut:
http://www.ohiohistorycentral.org/
http://www.loopnet.com/