An important observation that I have made about these AI Teams is that it is hard to please a Team but easy to anger them.
For example, let's say that you are trying to please Team A. Let's also say that Team B is the Worst Enemy of Team A.
If you trade with any member of Team B, then ALL THREE MEMBERS of Team A will hate you for having traded with their Worst Enemy!!!
On the flip side, only the SINGLE MEMBER of Team B that you traded with will be happier for having made the trade, even though a tech trade to that team member will help all three of Team B's teammates.
I have most of the world hating me for having Traded with their Worst Enemies. That said, I think that I might try for a Diplo game, just to see if it is possible to (eventually) dig myself out of this negative Diplo relations sinkhole and get some group of suckers to vote me to victory.
Of course, one can probably win by self-voting in Warlords, but doing so wouldn't be nearly as fun, would it?
My backup plan will be to fly into space and forget about all of the gangs of hooligans.
The combining of Leader Personality Traits also is quite confusing. I am not really sure if Leaders have their Personality Traits (such as whether or not they will Declare War at Pleased, whether or not they will Trade a Tech that few other AIs know) are averaged together, are floored, are ceilinged, are different in behaviour for different Personality Traits, or what.
The question also gets raised as to what happens when you eliminate a member of a Team. For example, if you face an AI Team that has 2 members who will not Declare War on you if you are Pleased or above but another one that will only not Declare War on you if you are Friendly or above, I believe that they would likely, as a Team, be willing to Declare War on you at Pleased. However, if you eliminated the AI from that Team that required you to be Friendly with them before they would Declare War on you, would the two remaining teammates still carry-over the Dead Teammate's Personality Traits and thus still be willing to declare war on you at Pleased, or would you now have a situation where the Dead AI's Personality Traits are ignored and thus the Team with its remaining AIs that will not declare war at you when Pleased with you will now not Declare War with you when they are Pleased with you?
The answers could definitely impact one's overall strategy towards dealing with some of these Teams.