What do others think about this? On the one hand, in my two emperor games the AI seems to shack-up quicker, which gives them an initial tech advantage, but I find that by the time I find a friend (maybe 100 turns later with even a smaller, backwards one) to ally with, I start teching like a beast. And I can use him as cannon fodder to harrass the other AI's while I plan my surgical strikes. And simply having his size and armies makes the other AI afraid to attack me so I can stuff my cities with buildings instead of worrying about armies. I notice that at this higher level, I really don't need much in the way of armies. I can use the small amount I have so much more efficiently that it's really rather pathetic to watch the AI miss their opportunities with their giant land armadas. Gosh, I'd be afraid if I were playing against my self in command of the AI armies, but the AI just doesn't know how to use their armies. What have been other peoples experiences with PA's? And, has anyone ever seen more than two PA's in a game? In my current game, their's two competing alliances and the rest of the world is becoming vassalized to one side or the other--either willingly or through conquest.