My entry is the DeHavilland Mosquito Fighter/Bomber, which, for most of WWII, was the fastest plane in the sky, with speeds up to 439 mph, depending on the variant. It was powered by 2-Rolls Royce Merlin engines(the later Mustangs only had 1), and was the most heavily armed plane of the war. With 4-.303 machine guns, 4-20mm cannons, or 1-6 lb., rapid-firing cannon, 8-rocket rails, and bombs, it was known as the 'tse-tse', as it was a fly with a lot more sting than a mosquito. It served in all theatres in a multiplicity of roles, to include: fighter, fighter-bomber, anti-shipping, reconnaissance, ground attack, night fighter, etc. Made from plywood by England's furniture industry workers, it was virtually invisible to radar, very sturdy, and could outrun anything that got on its tail. Go to Wikipedia for some great images and information about the neatest plane of all times. You'll be glad you did.