1. A-26B
2. A-26C
(3. XA-26F for jokes, since it had a jet in the back and could reach 435 mph. Think of it as a counterpart to the RV-8, but with 14 .50 cals in it [like some other A-26 variants]
)
Sorry for being difficult, but aside from the last one, these honestly do represent my opinions at the moment.
EDIT: Also, bear in mind that the people who post here
will not be a representative sample of everyone who plays this game. This poll will probably be heavily biased towards those people who enjoy more difficult planes, not those who just want some fast action in the game - that sort of player will probably have a preference towards faster, late-war rides, and perhaps won't have a forums account.