1942 2nd edition is an upgrade from 1st edition with 1) AA guns that are specific to countries and rules that they can be eliminated, 2) more country specific sculpts, 3) integrated AA to defend IC’s, 4) much better chips than are in any other AA game and 5) a better map. You now have an out of the box map that is playable in terms of territory size (1st edition is ridiculous!!!). The map was also redone to improve play balance. Get this one for the map alone. The bonus is the new sculpts. Personally 2nd ed 1942 is the most balanced of all the A&A games. I know a lot of people say the allies can’t win 50/50 without a bid, but I think most of those guys are trying older A&A strategies for this game and wonder why they can’t win. The pacific is finally important in the traditional A&A game.
1942 2nd ed is best of the best including better than anniversary edition of A&A in terms of playability and balance and fun after probably hundreds of games of all versions.
I still vote to nerf independent AA guns in all versions of AA and just keep integrated AA with IC’s.