Hello.. I just completed a long earth map on monarch, I had one vassal . . Hannibal, oh boy... he was an amazing ally .. of course I was giving all the good techs so he could fight side by side with me the wars, he resulted to be the best ally that I ever had... I mean , it was something I've never experienced before... we were involved literally in a World War and he was building tanks, jets, bombers, carriers... we were fighting in 3 fronts... in the Pacific against Chyna, Africa against Cyrus and in Europe against Julius Cesar . . what a good experience it was... the whole world against us and we prevailed... so ... in your experience who had been your best AI ally??