There are a lot of trolls in this thread who are much more interested in trying to provoke a reaction rather than posting images of actual contenders for the title "Ugliest Aircraft".
It is absurd to list an A6M, Bf109, C.205, F4U, Fw190, La-7, P-38, P-51, Spitfire, Yak or any other WWII fighter as the ugliest aircraft of all. Only a troll would do so.