Wonderful post Steve...

If I remember correctly the North American P51 "Mustang" was a joint British and American design and not just by engine only.
We used to hear a lot about the turning ability of the Japanese Zero but at the end of World War Two when the Axis Aircraft were compared to the Allied Aircraft by several different Test Pilots from several different nations the late model Spitfire and Seafire could out turn and out fly the Zero and anything else.
Also the Hawker Sea Fury was in many opinions from many aviators the finest radial engine fighter produced.
Now to get down to aesthetically pleasing neither the Spitfire or the Mustang can hold a candle to a DeHavilland of Canada DHC-3 single radial engine Otter....

Sorry to get so long winded Steve....

Thanks for those Links everyone...

Cheers...Happy Landings...Doug