There are many ways to compare cities in America. You can speak of demographics, economics, or the cleanliness of the city. However, that is not the most important aspect of a city.
A cities sports teams are.
This is a countdown of the Top 13 cities for sports.
I only counted the cities that had a sports team in the "big three" of American sports. (Baseball, Football, and Basketball). I used historical data as a means for judgment, and made a decision based off of that data. It in no way reflects which teams are on top right now.
I included FRANCHISE championships, even if they moved.