Bamspeedy
CheeseBob
You get the same amount of food from your city tile regardless of the terrain under it, so build on the crappiest tiles and leave the good ones for working.
True. I think someone should do a full study on what you get from tiles when building a city on them. Food will ALWAYS be 2, regardless of terrain. Building on an iron hill, will net an extra shield, IIRC, (but not as many shields if you mine it and have a citizen working on it). Gold does not seem to have a limitation, so building on a gold hill or luxury/resource that adds gold and nothing else, is almost always a good idea, because you get the commerce bonus right away.