I like all the discussion about the nuances that make the Horde and Alliance both be firmly in a gray area. I could probably go on and on about old hatreds and the history of both sides that lead up to the state of that game's lore today. It's actually a really fascinating thing to discuss. But I don't really view the Dominion or the Exiles as being close to either the Horde or Alliance. (the horde is hardly the ragtag bunch of refugees people are claiming, and the Alliance isn't as cleancut or elegant as the Dominion is) It's a lot closer to Alliance vs Browncoats or Empire vs Republic. Alliance/Empire/Dominion are all very clean cut, totalitarian societies, doing what they think is right. I'd even go so far as to say, in some ways, the Dominion has shades of the Galactic Republic pre-empire. The Exiles/Browncoats/Rebels are just trying to survive and make a home for themselves, though the Rebels want to overthrow the empire, it doesn't look like the Exiles want to overthrow the Dominion. I can also point at BSG as well, for the Exiles = Colonies, anyway, if not the Dominion.