1.) Oh, I agree with you 100%. However, don't make the mistake of coming to the wrong conclusion. The solution isn't to remove features, but to teach the AI to use the new tools it has better.
You probably know that you've just signed up for sisyphean job, don't you?
I can only admire your devotion and skill on doing that, because I can see some improvements in that area. What worries me the most is that I'm not sure if you
would be able to keep up with all the new changes coming. The same time you try to "upgrade AI brain", there is a flow of new features. I'm not sure if you can win that race.....
2.) I've tempered this quite a bit in the early game with Better RoM, but the late game is still really easy, I agree.
Any plans in that area?
3.) The reason this happens is this: The AI is considering war. His worst enemy, right next to him, is in the 10 turn window of peace that they just declared. So he can't target him. So he picks the next best target, you. However, his war preparations take longer than 10 turns, and the peace expires between his enemy and him. However, the AI doesn't switch warplans and target the old rival, and stupidly heads off against you. Sound familiar? Better AI .83 solved this, which will be in Beta5.
Yes, I understand the reason. AI is making tons of other stupid mistakes. Lately I saw that AI was keeping 10 (!) artists in his capital (as specialist). Why the hell AI did that, keeping in mind that it was behind in science, and the cultural victory was not chosen by me as a victory condition, I shall never know.
But of course there are some areas in which AI is pretty good. Lately I played a game in which the existing world has been divided between two empires (me and Nebuchadnezzar) with 4 vassals each and Abissinians trying to survive independent. I must admit that AI perfectly chose the time to start a war with me and my allies. It happened that I forgot about the raising taxes penalty, and changed them dramatically. I got 10 turns of anarchy. Guess what: Babylonians invaded my vassals just two turns after this s%^& happened to me
I must also admit that Nebuchadnezzar tried to conduct this war (which lasted over 200 years) very reasonable - created couple of stacks which were sent in various directions, tried to get left behind for healing wounded units, defended key strategic cities etc. What killed him ultimately? Lack of technology. I had T-72, marines, infantry, modern grenadiers while he still fought with riflemen and cavalry (rifled)
Some things you forget to complain about:
Wonders. The AI has been completely failing to build any significant number of wonders. This was due to a type in the calculations with Better AI, which basically reduced the chances to 0. Now that I caught that and corrected it, the AI are again building wonders.
I can confirm that. 50 wonders built, 6 of them went to 10 civs, and other 44 were built by me
And this in fact is one of the key reasons why AI stays behind in development. Some of the wonders can give you excellent boost in selected areas!
It would be fair to say that I haven't played any version higher that 1.60 beta 4. So, I understand that some of my opinions and remarks can be out of date. I will report soon from beta10. As I heard, this is the version which would be the most recent for next month or two, is that correct?