Boeing field, next to SeaTac (but not in class b airspace) was my favorite place to land, and home field for me. Not too busy, but enough real air traffic to make good practice.

My favorite times were landing shortly after the last flight of the Concord before it went to park at the flight museum and watching it taxi off the runway from overhead.

And another time being told to extend downwind and look out the window to see a Blue Angel buzz the tower.