All I ever notice is that they always have 12 happy faces to start, and they have about 5x your army on emperor... Still because they're all warriors, once you have ONE archer you've basically equalized their advantage...
I know they get research bonus too, but because you only need to focus on getting longsword and cannon to win the game, it does not matter how fast they tech usually... Unless your game is on a huge map where it is impossible to kill them all off fast enough...
They always disapprove you too because your are under army for 1/3 of the game... So expect a lot more wars...