Here's my guesses/wishes:
Spitfire Mk.I: Colin Falkland Gray's plane
Hurricane Mk.I: Douglas Bader's plane. There's great pics of this paint scheme in the Fly Past january issue worn by restored Sea Hurricane Mk.X. I know HTC doesn't usually put personal markings on AH planes but that big flying boot kicking Hitler on the butt sure looks cool.

It's right in the place where squad logo will probably be though...
(I'd be more motivated to shoot Hurri1 down if it had red stars tough.

)
Bf-109E: Hans von Hahn's plane
Bf-110C: One of the ZG 1 Wespen Geschwader planes. Again, cool nose art!
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1Wmaker1
Lentolaivue 34