Well I like an American Pacific offensive more and more because I find that Japan cannot keep pace in the fleet wars and build up a land force to threaten Moscow at the same time. Either it loses the fleet battle (which means Japan will lose half its income) or it can only send a token force against the Russians. So I go Pacific whenever I can. But if USA starts with a disadvantage in the Pacific (this will be most games), it is not the best strategy. The best players will adapt their strategy to what is happening in the game.