Well I have to agree with CS_Thor and Frankyboy, if so much effort was put into accurate aircraft and buildings, to go then for arcade maps, just degrades the game.
I like Frankyboys suggestion very much, otherwise I would be very much for the Channel Islands Guernsey, Jersey and Sark which are rather close together, but these then at 1:1
By the way Guernsey airport was the only British airport to be occupied by German troops.
This would be in step with historical accuracy and short distances for the impatient types, so that pretty well all sides should be happy?