Get ready for a big read... I'm going to offer my opinion on every poll choice.
I wish I could withdraw/change my vote now...
I picked "stay with HRE", but I didn't really think about it when I did it. Now, I realize it's a pretty weak choice, but some of your alternatives would have me put HRE over them anyway!
Charlemagne is a really cool leader and all, but the HRE was never much of an "empire" or even a "country". It was pretty much a confederacy. But then again, everyone seems to think Ancient Greece was a "country" or "empire" when every city was independent and had its own laws and rulers.
Out of the other 12 or whatnot choices you picked, I only feel like three of them are warranted, and I'm not trying to be western-centric (although I am admittedly about 1000x more interested in European history, if only to figure out how it became the dominant continent).
Austria Very important country back in the day. While admittedly, the Austrian populace is very similar to the Germans (hell, I don't even consider them to be different peoples), their empires (or the German's lack of) were different. It's worth arguing on whether or not you would include -Hungary as that was more important and made A-H a world power pre-WW1, but the Hungarians were of slavic descent and a very different people, complete with their own monarch. Do you represent them in unity at the height of their power and glory? Or do you represent them seperately?
Hitties. First people to wield iron weapons. Honestly, I don't even know anything else about them, but that's pretty important in and of itself. I'm pretty sure they went out and conquered a good piece of Earth though.
Israel. Sure the country is modern (would actually be the most recently founded country in the game, correct?) but the people have been around influencing history forever.
My attempts at hating your other choices? ...
Poland. Okay, honestly, there must be something I don't know about this country if everyone really wants it in but... It has seemed so unimportant to me when you compare it to some other civs in the game. No offense meant...
Italy. Rome? What you want Mussolini to have his own country? Italy before that was all small sovereignties...
Prussia. Sure, let's get every Reich in there! Deutschland uber alles! You know with this choice with Otto and Freddy both getting moved here, this just paves the way for Hitler... Which is a second reason this would never happen.
Sweden/Denmark. Umm, this is the same ethnic identity as the Vikings. Personally, I'd rather see "The Vikings" renamed to Scandinavia, because then maybe you could have the appearance of a king from after the renaissance when Sweden was a world power again, but eh. Curious on why you didn't list Norway? Did you think they were more Viking-y?
Random African Civ. With the exception of Ethiopia, which I'm pretty sure is going to be included, I feel Mali, Ethiopia, and the Zulu represent Africa well enough compared to how much it has influenced the world so far. They are all pretty distinct cultures. You could maybe get Songhai in there, but correct me if I'm wrong (Africa is the continent I'm least familiar with) that would be a little redundant with Mali.
Polynesia. While that section of the globe is admittedly a little blank currently, has any of those islands enhanced your life?
Brazil Big country, has a distinct national identity, but how much has it influenced history outside of Brazil? Coffee exports? Sure, I would like to include another South American civ, and this is DEFINITELY the one I would pick (I don't know much about native tribes from the continent) but I think there are others that could be included first.
Venezuela. Pretty much summed it up with Brazil.
A Slavic Nation. I don't any Slavic region is large enough to be uniformly identified (hell, they are still killing each other now... Kosovo?) and historically relevant other than Hungary. Which I noted earlier, could be realistically included jointly with Austria as that entity became very powerful up until 1914.
Phew, that was long. If there one country that went unlisted I would maybe -- but definitely not before some others -- include
Vietnam. they have a distinct culture and are the fourth largest identity in that region next to China, Japan, and Korea. But they are still recent and have minor (but still significant) effects on history. I'd really rather see Siam or an older kingdom from that region. I have a strong feeling a country from this region will be appearing in BtS however.
Once again, I am admittedly not very knowledable on history outside of Western Europe and the Mediterranean, so take my opinions with a grain of salt (which should of everyone's, regardless).