This is an offshoot of the thread about transit-only airports. I'll expand it to allow other countries in addition to the US, but I'm not going to go find airport rankings for all the world's countries! You can use this one for the US, for others you're on your own.

https://en.wikipedia.org/wiki/List_o..._United_States

(I realize some ranks may change from year to year, so just go with whatever it says when you do this.)

In my case, the first one on the list that I've never visited for any reason is #10, Miami (MIA). I have an aversion to the State of Florida (weather-related -- too hot and humid!) but I have had occasional meetings there (FLL and JAX) and relatives in the Tampa Bay area. No reason ever to go to Miami, though.