I've been mostly inactive for years, but would love to get some serious building in soon before I move away to school. I haven't yet read through all of this thread (you guys type too much!), but I can say this sounds like what I've been interested in working on - building around a collaborative lore. I'm undecided of which faction is my favourite, but I would say I'd swear allegiance to whichever faction would grant me a barony!
I have a few thoughts on the political landscape... I feel, for the various factions to not go to war with each-other would be rather unrealistic, if not merely boring. Perhaps a more centralized administration is the status quo but I feel some elements of feudalism could be included, as it could create a more in-depth story line by creating various small conflicts while only marginally disturbing the rest of Roawia. I also think it would be cool to partition the provinces geographically with the members of each faction "holding land" within their borders, having their own castle or fort (assuming they can build one) and lands of which their character is lord. As for the future, if characters are allowed to switch factions, they could take their lands with them, mixing up the borders.
Anyways, these are just some ideas, if anyone is as keenly interested in medieval politics.
"A good woman is only a woman... But a good cigar, is a smoke."
~ Russell EdgingtonFlickrMOCpages
Never open a package from DCs Toys
while in an altered state of mind... terribad idea.