Hey Dogg,
True enough, some great aircraft aren't shown. The list shows the most-produced aircraft of WWII; my arbitrary starting point was planes whose production totals exceeded 5,000. The Douglas A-26, for example, only had about 2,500 produced.
For additional perspective, the second list includes the production totals of aircraft currently in AH that didn't make the first list.
I think at the time I was attempting to make a subtle case for inclusion in AH of the aircraft highlighted in blue.