I miss the "colony" aspect of Civ III where you could set up a garrison on any given resource and use it. In Civ IV it was annoying to have to put a city somewhere not so convenient just so you could grab something important like marble to make Wonder building quicker. But I DO NOT miss the asenine way that game handled corruption, making any city barely too far from your capital produce basically no shields. Civ IV fixed that perfectly by making it cost money, instead. I hope Civ V improves on that.