I must admit I don't have the same affinity for farming as the AI does. When I see flood plains, I think cottages in the early game or work shops once I employ state property and watermills (esp. with electricity). The only exceptions I make are obviously where grain resources are and in the city where I have my national epic, where I may put a lot of farms to maximize great person points. I suppose my strategy in this respect might make sense due to the fact that I almost always play with a financial leader on a huge/large world. When your empire is sprawled out the state property civic becomes more beneficial than free market, especially with the food bonus to watermills and workshops. And of course if you have great person enhancing wonders/civics, it may then make sense to build more farms.
Do you find yourself replacing a lot of the farms that the AI builds in cities you capture? If not, why? If so, with what? The main purpose I see to building farms on 5 flood plains is to maximize great people, but 5 cottages that become towns seem to be more beneficial than 2.5 additional great people in most cities (it would be 5 after biology, but still). I usually don't even try to create great people in more than the 2 or 3 cities where I produce wonders. Otherwise, I use great people to slow down a big city's growth in avoiding angry citizens. What do you do in terms of farming and how does it help with your overall strategies?
Do you find yourself replacing a lot of the farms that the AI builds in cities you capture? If not, why? If so, with what? The main purpose I see to building farms on 5 flood plains is to maximize great people, but 5 cottages that become towns seem to be more beneficial than 2.5 additional great people in most cities (it would be 5 after biology, but still). I usually don't even try to create great people in more than the 2 or 3 cities where I produce wonders. Otherwise, I use great people to slow down a big city's growth in avoiding angry citizens. What do you do in terms of farming and how does it help with your overall strategies?