Korsgaard said:
So by and large, what would you folks say the biggest changes from EU III are? I played the hell out of EU III, and am just curious what some of the big changes are before I go buy EU IV
The single largest difference, in my opinion, is the replacement of all the bajillions of sliders in EU III with the points system of EUIV. It makes expansion, tech, and national ideas much more accessible. The old infamy system is dead and gone, folded into the diplomacy system as an "aggressive expansion penalty" - which feels much less arbitrary and strange.
I'm playing as poland right now, as politically as I can. My only war has been an allied war with Austria against Ottomans and Crimea, but I've managed to annex Teutonic Order, Mazovia, Brandenburg, and Pommerania anyways. Hungary is trying to stir up trouble. I'm in personal union with Lithuania, trying to form the Commonwealth, but getting to administrative tech 10 is a huge pain.