Supermarine Spitfire MKII

The Spitfire has often been called the 'prettiest' aircraft of WWII. Although sleek and definitely aerodynamic, the Spitfire was also a deadly fighter. Contrary to popular belief there were actually more Hurricane squadrons during the Battle of Britain, although the Spitfire is seen as the savior of Britain. Armed with eight .303 machine guns. Like the Mustang, it also could have been made a more effective fighter with addition of cannon, although, it's performance would probably have suffered as a result. The later marks were very fast and maneuverable and, like the Mustang, were used in Korea. It is still hotly debated wether the Spitfire or the Mustang was the greatest fighter of WWII (I'm sure the Germans would argue the case for the FW190).