I wonder why your Aces High related threads always appear in the OClub instead of the General Discussion forum?

That being said, HT has tried all possible combinations. According to him, 3 sides worked best.
And that's very reasonable, once you have a certain minimum activity, 4 countires balance themself most efficiently. With only 2 sides, it's very easy to end up in a runaway situation creating a constant underdog. With more than three countries the dogpiling quickly becomes too one sided