I had a surprise on immortal the other day. Monty was my close neighbor, so I churned out an army expecting a DoW. Got to turn 75 and he still hadn't. Seemed a little silly to have a military all lined up with no war and his capital was right there...I generally play fairly peacefully to begin with, so was new to be the first aggressor on immortal. I prefer emperor for the early game and I don't feel like I'm in trouble playing a weaker start roll. But by late game I'm so far ahead in tech I rarely feel like actually playing the game to the end. On immortal they're close enough that I'm more willing to play the game out.