Still running into a few very odd situations with hex selection on cultural border growth, but it's definitely much improved over the previous version. I also cannot say that what I have experienced it technically "wrong", especially if the cultural growth hex selection algorithm is taking UA/UI/religious pantheon bonuses into account.
For example, I'm currently playing a game as Brazil. Started in a heavily forested/jungle region (like you do), but also adjacent to a nice 5-hex lake. Lake hexes start out good and can become great, but India nabbed the lake pantheon so I had to take to the forest pantheon (which is probably better for Brazil anyway). Anyhow, fast forward 100+ turns and my capital has expanded to take every jungle/forest hex within 3 hexes, every strategic/luxury resource (most of which were in forest/jungles hexes), and is now starting to expand to forest/jungle hexes in the 4th "ring" around the capital. HOWEVER, that 5-hex lake adjacent to the capital? Not a single hex taken save for the 2 I started with from founding the capital. So the hex selection algorithm is placing higher emphasis on non-resource jungle/forest hexes outside of the workable range of the city rather than the 3 remaining lake hexes in the 2nd "ring". Should there not be an exception in the algorithm that drastically reduces the "desirability" of hexes greater than 3 hexes from the city to prevent these sorts of scenarios? Maybe this is working as intended and I'm just experiencing an edge case, but it still feels like more can be done to make the cultural growth hex selection more apparently logical.
I will say, however, that the new algorithm DOES place heavy emphasis on strategic/luxury resources and Natural Wonders now, so at least that does not appear to be a problem.
Also, still seeing wonderful results with the AI diplomacy/war logic. The AI really feels like it is making logical decisions in regards to how it has decided to "win" the game, and I still smile every time one manages to surprise me with a cunning and "human-like" tactical decision. The AI has also drastically improved in regards to declaring war and knowing when it is losing or has no reason to continue fighting. Seeing a fair amount of Ancient/Classical DoWs, even from non-traditional warmonger AIs, and fewer instances of wars dragging on seemingly endlessly.
Cheers!
