Some thoughts on a three-way warring universe
Fighting over Earth might be a good "official" reason for warring governments. I'm imagining two of the three governments actually caring about who gets to rule it, to the point of periodically sending forth fleets to dispute the other's fleets. I don't know what the lifestyle would be like on those people who actually live on Earth, if any, but I imagine they'd probably be tired of constantly having to dodge reentering ship debris from the daily orbital battles taking place. Maybe the Earth was made uninhabitable a while ago, and ruling it is just a formality between two prideful governments. However, maybe Earth was made inhabitable by some superweapon and these warring governments are trying to gain control of the Earth's blighted remains in order to find the superweapon.
Unofficial reasons for fighting between these two governments might be differences in modes of governance, economic systems, religion, or other ideological differences. For example, gov't 1 relies on exploitative, corporate slavery to develop economically-narrow planets heavily producing a few ores or crops. Gov't 2 is a confederation of independent states with an emphasis on personal freedoms, even at the expense of production. Consequently, they really can't assimilate each other and uneasy tolerance is even too difficult for long periods of time.
I mentioned that just two of the three governments fighting over the Earth. I'd like to think that at least one of the three major powers has the sense to not waste lives and resources duking it out over a single system. This third government might be more adapted to life in space and have few, if any, planets to their name, hence the reason for their apathy towards Earth. However, for reasons unknown at this point, they still have a bone to pick with the first two governments. Perhaps it is because the first two governments see this third government as sub-human pests who don't live on proper planets and fly strange ships, deserving of opportunistic genocide. I imagine this third government a geographically diverse people, with clusters of systems united together in deep space, spread out from each other, always on the fringes of the other two governments. While they may yearn for self-sufficiency out in the hard vacuum, they are forced to rely on periodic raiding to supplement their own unique technologies. Perhaps, and this may be a big perhaps, they are able to act as a unified government in offense and defense by reliance on wormholes connecting their clusters of fringe systems to each other. If we want, we can make travel through the wormholes only possible once the PC has obtained a certain outfit. Of course, said outfit would only be available upon reaching a certain level of familiarity with the third government.
I haven't said much on the first two governments. I believe we could almost just pick two from the list of faction ideas that has been created, flesh them out, and develop backgrounds. There'd be two 'normal' governments and this other other wildcard government that in some ways doesn't count as a superpower in the universe, but still seems to be a major thorn in the sides of the first two. I know that 'gray' governments were mentioned earlier in the post as desirable from a few people, and I like the idea too. Here are my quick goods and evils for the three governments:
Gov't 1
-Exploitative, corporate slavery, expansionist
-Good thing: Has a history of being savior of mankind by developing cure to a pandemic plague. Maybe?
-Bad thing: Well, has declined into using slavery to make even more money for the wealthy ruling class
Gov't 2
-Confederation of independent states, personal freedoms, low production but high tech. Formed perhaps in reaction to what happened on Earth, perhaps?
-Good thing: Citizens enjoy a high quality of life
-Bad thing: Well, they've done something bad, I'm sure. I'll let somebody else finish this example
Gov't 3
-Fringe government, spread about the galaxy
-Good thing: Cares for escaped people from Gov't 1
-Bad thing: sometimes kills innocents in its periodic raids on Gov'ts 1+2
Just some thoughts and examples. I'd like to get the ball rolling on specific government ideologies and backstories so maps, ships, and missions can start getting worked up.
Werhner