Just finished up a game as Rome and lost to Brazil via CV. Brazil would take turns bribing Japan, The Iroquois, and America to attack me. Very smart on Brazil's part, however kinda dumb on Oda, Hiawatha, and Washington. Brazil was the clear leader the entire 2nd half of the game. I was no threat to win, he was. At some point the AI has to prioritize taking down the leader, and right now that is happening too late. Also I tried to get Attila to join me in attacking Brazil, but he just sat there the entire game with 4 cities. Never declared war. It's not like he was winning or anything, Brazil was. He should have been much more aggressive.