IMO The game is balanced. J1, J2, and J3. I have won with Japan on all DOWs and beat other players on all DOWs. After UK and China falls there is only an 8 dollar difference between Japan and the Allies. Having 30 or so live games Im tending to think that the balance is good. The J1 attack is hard to beat, The US and ANZAC players from the start have to plan their game for when UK is gone.
One of my fav moves for US after a J1 DOW is
destroyer/trany to midway with 3 fig, 3 tac, 2 inf
rest of navy moves to Hiwaii
This does a couple things. If japan attacks the midway destroyer light (scramble airforce) if they go heavy (dont scramble) and counter with everything in Hiwaii, airforce from midway and what ever you built last turn. Most of the time they wont attack. so now your navy is ready to attack Japan and cant get attacked. Your free to move stuff down to help ANAZC or take forward islands. The destroyer “blocker” is a great move for US. Japan might try to set a “blocker” of their own…. if they do the blast it with your bombers the destroyer wont hit that often and every destoroyer you kill evens the economy.
I know there is lots of holes in any strat and will prolly get picked apart take it or leave it.