You must be one of those overlapping fat cross people. I've never been able to bring myself to place cities that way, the only exception being when the overlap is desert, ocean, mountain, ice, or tundra. I'd rather live with a lower score than have my cities placed in such an aesthetically unpleasing manner. An abstract objextion, I realize, but not unvalid. Anyway, thanks for the analysis; I could use more info on whipping. If I end up in the late game, I always have plenty of cities well into the 20's with full tile usage.

I like to maximise the usage of tiles under my control including second rate tiles like plains and coastal sea that most players ignore. That allows me to extract all the commerce and hammers earlier than otherwise while city size is limited by happiness and health. For instance where you might build 4 perfect cities I might build 8 cities, 4 good cities that use basically the same high quality resources as yours and 4 second rate helper cities that get second call on any resources and work the left over tiles. While happiness or health is a limitation the second rate cities thrive and help my empire develop quickly by whipping out troops while the good cities concentrate more on building their infrastructure and producing commerce and GPPs. As the game progresses and technologies, trading and my conquests raise the happiness and health the good cities grow at the expense of the helper cities.
It is not a pretty development strategy but it sure is a powerful way to start a game where you are going for domination.