I think befriending the Chancellor or making careful use of prioritized units before a Civil War should give some advantages. I should note my case in LOTR was somewhat exaggerated. Nobody seemed to pay attention to my gross overspending and recruitment of troops in the middle of the Empire where they weren't needed (or if they did noone objected) and noone but Rossahh called in any prioritized units, which would have made things tougher.

I'm not sure about artificially buffing the defending side... maybe due to civil unrest units can't be recruited in provinces involved in a Civil War? This would have the side benefit of punishing anyone engaged in a long war, and mean that once it began, the advantage of having a Chancellor friend decrease greatly.

GH I fear that might be getting too complicated. I'd like the deciding phase for battles to go quickly, especially since a day or so of voting could easily take longer than many of the pvp battle methods (excepting tabletop of course). It is something to think about though...