So far no votes for a) Warfare
This can somehow explain why bad AI and 1UPT don't spoil the fun for many civ fans.
Still less than 5% for Warfare, which surprises me. My only AI concerns are peaceful, that it's not psycho in its trade or resource dealings, and doesn't randomly declare war without reason. If I want combat, it's so much better, and still with strategic and tactical elements, in open-world FPS or old-school RTS.
I'm so bored by war in Civ4 that when someone declares on me, my 'interesting choice' is "Do I slog with this guy for 20 turns, or will I start a new game?" War makes the game way too easy, and the logistics of it are a real drag, especially if there's overseas travel involved before Flight. The first 30-50 wars were fun, learning and mastering the military interaction; the next 50 wars were disappointing, rolling over an AI unbalanced the game too much in my favor in the days when I played to win on Emperor for the challenge.
Nowadays I typically play on Prince and get so far ahead militarily that it's very rare someone will declare--if they do, I vassal rather than eliminate, so they're still a factor in the game. I also often customize the game setup to minimize war chances, without going Always Peace which would be unbalancing in itself--and always Raging Barbarians so early military spending is still necessary.
Diplomacy is fairly similar, 'please don't screw up the game' is my main wish. Other than that, reasonable goods trading to push back the Happy and Health caps.
The interesting stuff for me is definitely in the last 3 choices [incl Religion and Culture].