Haseri
Emperor
Have you looked into the RPG? Because it has rules for factions and playing the game of thrones (I would have done something sooner if I didn't keep over-complicating things and it was more generic).
It doesn't have stats for the major houses, but it does have how they affect lesser houses (like being around King's Landing means you have less land, but more influence), so you could extrapolate from there.
It doesn't have stats for the major houses, but it does have how they affect lesser houses (like being around King's Landing means you have less land, but more influence), so you could extrapolate from there.