IDK if anyone has done this yet. But I have gone through the the deck and have figured the rank in terrain combos to raise settlement levels. The only thing that confused me was how does a forest/desert beat a farm/farm? Seems the results of 3rd and 4th should be reversed.
Best to worst.
2nd: Farm/Forest, Forest/Mountain
3rd: Forest/Desert, Mountain/Mountain
4th: Farm/Farm, Farm/Mountain
5th: Farm/Desert, Mountain/Desert, Dessert/Desert