I think one of the main problems is that the game doesn't even function like a human being. It just doesn't want you to win now, and at any cost. All thoughts of logic have been thrown out the window. In my game today where I was literally introduced to about seven new civ's because they declared war on me, when they didn't know anything about me, is a little far-fetched. This isn't a move to help an AI win. This isn't an example of an AI acting human. This is an example of the game just not letting you win.
There was a propensity for this in Warlords, but it seems to me more pronounced to. The same goes for battle odds. Battle odds DO NOT PLAY OUT!
I don't see why people DON'T have a problem with illogical warfare. What is the attraction to this affliction? It doesn't add any depth to the game. It detracts from it. What addition to the game is there in my friend attacking me for s__ts and giggles, when someone he hates, who is weaker than me, is right next door? Or why is Monty crossing the whole continent, across three different civs that he hates, and are more weaker than me, when I am already significantly stronger than him? This is a moot war. The only thing it is going to do is take me off my planned course, and keep me concentrating on military instead of my true objectives. And doesn't fit a logical mode.
I think there maybe needs to be different options to pick. Such as, you make a custom game, and the AI plays like humans. They don't care about relations. Eventually they go to war with you anyway. They dog pile you needlessly, cross continents expensively to suicide anyway. And then another option, which is more realistic. A mode that has some sense of rationality to it, some sense of REALISM to it.
Is Bush going to attack England tomorrow because the world isn't big enough for the two of us? Are we going to invade Canada for their mineral deposits tomorrow? No. The least they could do is have some disintegration process where relations tumble over the course of a few turns. This "your friend is declaring war out of the blue just because" business is completely UN-realistic.
There's a lot of issues that need to be addressed. But I guess the game can't be catered to everybody. I would appreciate a tad more realism though.