My first game will probably be either USA or Colombia for nationalist reasons. As the states I would like to create the "USNA" as in from Alaska to Mexico and make America a global power. I'll just let the game tug me along politically when I play as the U.S.
As Colombia, I would like re-create Gran Colombia and create a hegemony in South America, and at least be in the Great Powers list. I think I'd like to get the socialists in power, for the sake of "liberating" Latin America from U.S. and European influence, i.e, lots of puppet states.
My second choice would be Prussia, unite Germany and thrash France and Russia some. I'd like to keep a reactionary party in the start and make democratic reforms (while retaining the monarchy) in late game.
Finally, I'd like to play as Britain, probably get a fascist party in the late game, and expand the Empire.