I recently downloaded the demo for Age of Empires 3 on steam and have played it nonstop for about a week now. I really love the game and I'd like to play with more than just 3 civs. I did some research and apparently Aoe3 is not the best game in the series. Aoe2 was by far the most popular and it looks great and seems to have hundreds of hours worth of content. Aoe4 looks a bit more polished and all the civs seem really unique e.g. the Mongols. I'd really love some feedback from players of this series to help choose which one I'll buy without taking nostalgia into account.