It's pure eye candy, but would it be possible to have different default paint schemes for planes in Southwest Pacific Theater? From 1943 on RNZAF, RAAF and USAAF planes all had white tails and (sometimes) white diagonal recognition strips on their planes.
Also, would it be possible to improve the default numbers on the Soviet Aircraft? At least later in the war, it appears that Soviet planes had numbers which looked a lot "prettier" than the numbers in the game, sometimes with elaborate serifs:
http://www.warbirdphotographs.com/VVS1/Yak-9D0-1.jpg
http://www.goaviator.com/wp-content/...sociation1.jpg
http://img516.imageshack.us/img516/7771/kozhedubfi2.jpg
http://www.allworldwars.com/image/077/IL-2Bg.jpg
http://www.small-wonder.org/Books/Il..._Air_126_2.jpg
Personally, I think that the elongated numbers shown in the first picture are most distinctively Russian, but I'm no expert.