Going full force Atlantic and Pacific should be equally good.
Going only Pacific must result guarantee falling of Japan and Russia but going only Atlantic musn't guarantee falling of Germany.
But as I said before; balanced manner should be better than focusing only one front. It doesn't have to be %50-%50.
For Making Pacific front more tempting and variety, its better to make Australia and New Zealand American hence USA would be closer to East Indies. Otherwise Western USA is too far away to reach here. Western USA is even too far away for to protect Australia.
hawaii can be overvalued too. It wouldn't be even too unrealistic. Some cities could be much more important than their actual values. Strateic locations, historically imprtant towns etc... Verdun in ww1 is a good example. The same can be applied to Hawaii. Had the Japanese captured it, it could be major blow to American public morale.