Giant Scale ARF's - WAR BIRDS
My vote would be for the P-51H which is the ultimate Mustang. Most fliers seem to like the Mustang and not many are aware of this last version which was far superior to the "D", which was a great airplane in its own right.
If you are interested in producing this version I have some material which might be of help.
Barring the "H", how about a P-51B with a Malcolm hood?
I also think a SCALE P-40E would be popular.