I agree with Squirrel and Deluvas: The current Faction Wars really works no different than some prop protection mod with groups. Real PvP is as good as impossible, and there basically isn't any interaction between the factions either - Everybody is just busy working on their cobblestone walls and forts. You can't attack settlements of other factions either, also claiming their land will not work even if your faction is significantly stronger than theirs. In addition, one has only few reasons to attack others: Plenty of unused resources and free land are available. If this doesn't change I expect the server to be empty soon too, when everybody is finished with their uber stone castle at least.