I'd just like to state a preference. I like 2 months but if that can't be done 3 is great as well. We need to remember that the fun part about this game is ELECTIONS! And, to keep up interest we should have the Presidential election more often.
Elections are a key part of the game.
Presidential elections are held every 4 months, Senatorial elections are held every two months, regional elections for governors and lt. governors are held at varying lengths also. Added to that there are votes on propositons and constitutional amendments held every so often as well. The people have many opportunities to cast ballots.
I don't favour the move to 2 months, in fact, I don't support changing the current term. Presidential campaigns have the potential to last for over a month as it is - reducing the term of office to two months would mean we would be in constant campaign mode. I also feel that a serious reduction in the term would devalue the office itself.