Port Raviel and Port Nebel used to be almost identical, and now Port Nebel is clearly the better city. Any idea how this could be? They are both about the same size, same weather, both coastal, both only adjacent to one townsland by land and 3 cities by sea routes, both with about the same starting gold and food values.
The two most likely factors are population density, and the small amount of pseudorandom noise that was introduced.
I don't know offhand what contributed most; ^ban^ would be the most likely to be able to answer that question in more detail for you.