You might want to wait until Coral Sea comes out, which should be soon. Its a smaller, introductory title. About half the operational scenarios in Strike South use only one of the 2 maps, however those scenarios tend to have overwhelming Japanese forces against smaller Allied forces, which doesn't mean they aren't still fun. I suspect you could play a lot of the Bomb Alley games on a largish table.
If you're looking at WWI/GWaS, I know that Mediterranean has a lot of one map scenarios.