I usually build cities on a pattern I include in the image...
the cities closest (the blue ones on the image, red is Capital) is almost my only good cities (and the cities closest to them that is...), every other cities goes from 10% production to 1%, (waste is worce then corruption), and I never build a courthose in those cities because I've noticed it doesn't help them...
the only cities worth building a courthose/police building, is the core cities who can gain 1-2 shields by doing that...
but when you have 50 (or 100-200) cities... it's only annoying...
What I think should be in the game:
- Lower the corruption/waste for Gods sake!!!
- The police station / courthouse should work better...
- It should exist more corruption battling units/buildings...
You know This GOTM (3), the island in the EASt.... well I never built a Palace/Forbidden there, I had them on a perfect location I think... so My waste/corruption was so high... I only built Irrigation, and built temples / cathedrals / marketplace / Mass transit system by rushing them with money, 25 cities or so (never built on the hills / tundra, afraid of domination victory) cost a lot... more then 20 000 gold or so
this is my city building map, (made it myself):