I have found it’s still very difficult for Germany to survive if Russia, Britain and USA team up.
The primary reason for this is the difficulty in sustaining a German navy. Even at 6 IPC each, subs are expensive when you need to buy tanks and fighters every round.
That being said, I won my first game playing the Axis. I was aided by my opponent’s poor play as he ignored Japan. My Japanese units conquered Western USA, Central USA, Mexico, Western and Eastern Canada and it was over.
From my short experience with the greatest war game of all time, the 1941 version is very well balanced, while the 1942 version is more in favor of the Axis. I advise anyone who loves a good long war game to buy it.