About 2 years ago I made a spreadsheet with 109 American (and Canadian!) cities with at least one 400 foot building (and arbitrary cutoff). I then added up the age of the 10 tallest buildings in the city and divided by the total to get an average age of top ten tallest buildings by city, which feels like a decent metric for which city has built a lot. Of course, since this only includes the 10 tallest, places like Dallas, which has a lot of growth but not in the top ten, are dragged back, and cities with pre-war highrises in the top 10 tallest get knocked pretty hard.
Does it show who's building the most? Not really. Does it show who's building the most tall buildings relative to the rest of the buildings in the city? Sure.
Link to sheet.
Random stat: The average age top 10 tallest buildings in those cities is 1989
Again, the sheet is a few years old now so it's a bit out od date.