ORIGINAL: Canoerebel
There are problems with nearly any target: Hokkaido is now well defended, Shokaku and Kyushu are within the umbrella of Home Island airfields, Okinawa is within the main perimeter, the various Philippines groups have major interlocking arifields and will have the Marianas to their back unless I first attend to those, the Marianas are tough nuts and I don't have a good port to replenish from (as I did in the campaign vs. Wake, which limits bombardments, so that's a big concern), and so it goes as I continue to evaluate potential targets. Some of those are still high-priority targets under consideration, but there are others out there also, ranging as far away as Timor and Java.
The thing is they are all by appearances deadly looking but the reality is that the Japanese player does not have the luxury of building every potential target to the max. There are just too many shortages for every point to be well defended. Japan can roll out aircraft like crazy but the amount of air support, service units and construction units is limited-not to mention the supply costs for developing major strong points. The key for the Allies in the later part of the war is to identify what points the Japanese player has neglected and then go for them.
The LST changes everything because the Allied player can grab any old zero port base that has good airfield potential and build them up. Something the Japanese player can not do. I love Siboret Island (and surrounding bases) as a target. Hard for Japan to defend or reinforce and it provides a level 9 airfield right in the gut of Japanese oil production. You won't even need B29s for most targets there, and you don't even need to invade Sumatra or Java just bomb out the oil and move on.