Thought I'd open the discussion on Catapults a bit. There were quite buggy for a long time so I generally stayed away from them. I've recently been playing with them and finding that 3-5 of them with some support melee, I can win almost any battle with the AI.
Enemy ranged units tend to target my weakly armored archers, but I've found them incapable of really hurting the Catapult, the Catapult's fire power isn't diminished by injuries, so I don't bother with Archers, the Catapults tank the damage of enemy archers, and I just obliterate enemy infantry approaching.
Enemy cavalry could prove problematic, but I very rarely see the AI whip out cavalry.
My thinking is that we need to up the AI's understanding of enemy catapults and purposely spread their troops out more. Might want to consider adjusting the starting location logic a bit to ensure they are not in perfectly clumped ranks.
Thoughts?