OK, I voted good because the fun factor was greater compared to the last beta. I like how the game is shaping up as it goes.
I read only the first 2 pages, but I have to agree with those that said they haven't noticed decisions empire-wise to have much weight. I'll go as far as to say that for me, there was no need to make those decisions. I blame this to how strong your sovereign and champions quickly become.
I played a normal and a challenging game on large maps. In both cases, I focused on giving my sovereign and champions all the +exp traits as I could, as early as I could, while taking as many goody huts and killing as many mobs as I could. So after a short time, they were far above anything the AI could manage to stop. In the meantime, I didn't have to worry about teching up (I went for whatever I thought was cool, but never had a real impact on the game), choosing what to build in my cities (I built whatever was available, but never a unit other than maybe a pioneer, given that my army of heroes was all I needed), or the economy/mana... I had excess in all those areas (I enchanted my heroes and cities but my empire had many, many shards and since I had lots cities and resources and no units to maintain, my treasury was more than wealthy).
I think this problem overshadows those mentioned like expansion having no drawbacks (which I also belive to be true), because they really don't emerge playing that way.
That said, and even though I enjoy going for the champion route and would probably do it anyway, that the units you can build seem bland to me doesn't help disuading me to do otherwise. They appear too unidimensional as opposed to how versatile and interesting heroes are. Take, for example, how AoW or Civ treats units. They gain levels like in this game, but as they do, they also gain traits and become not only more powerful, but also more interesting and versatile. In Civ, you can even "upgrade" them so they don't become obsolete later in the game (which is something I think this game direly needs). Now, you could argue that this is a strategy game and not a role playing game and you don't want to treat units as pseudo-champions, and that's fine. But so long as units are not perceived as a necessity (or you impose it somehow), then heroes will continue to dominate.