For realism maybe, for balance i think those numbers work well
Maybe 8, 5, 4 would work, otherwise one player will be OP (one player claimed E US and noone claimed anyother territory in the americas), or 2 players will effectively be taken out before game even starts (Someone took E US and someone else took W US)
Anyhow my game here is not as true RISK style as is yours so it is apples and oranges
I dont beleive that continental US should be worth 31+ IPCs when UK is 6, Japan is 8, and Germany is 14
Japan 8, E US 7, UK 6, Germany and W Germany each 5 those are the top territories and all pretty close
As it stands USSR actually will gain the most IPCs on its first couple of turns, but it also will have the hardest time defending them since there are so many.
UK/France is a little stuck but doesnt have to divide its forces between multiple fronts for atleast 2-3 turns
Germany will be competing with USSR for top income but will have a tough time fighting a 2 front war vs 2 heavy hitters (USSR and UK/France)
ANZAC with an airbase and naval base on Celebes can dominate the Pacific islands but will quickly face some tough choices on where to take its fight to the mainland.
India has the best shot at Africa if its willing to make a few sacrifices in asia.
China really has it tough, though if India goes Africa and ANZAC focuses on taking all the money islands then China and Japan will fight 1 on 1 for several turns
This is a pure FFA analysis. Im looking forward to some 2v2v2v2 and 4v4 games
The 2v2v2v2 is most appealing.