Okay, check out the post on evil nations for contrast..
http://www.shrapnelcommunity.com/thr...0951&type=post
Actually one of the tricky things about Dominions is that sometimes I think all the nations are evil in the sense that they are probably mostly fairly authoritarian and brutish societies and they all want to win at the expense of all the other nations (at least if their pretender god has his or her way).
But if we step back a bit, well there are a lot of neutral nations, a few that fit fairly closely to Judeo-Christian standards of "goodness" or "godliness". Caelum comes to mind - they're a bunch of winged angels after all.
Let's just say for now the good or neutral nations are the ones who do not rely heavily on death or blood magic, do not enslave minds and generally treat their people better than the evil nations.