With so many variants it´s hard to say.
But there are four airplanes that I really like.
FW190D---> Amazing at high altitude. Great maneuverability at high speeds and a great high tech piece at that time.
Me262---> First combat ready jet. Stylish plane It could have been deadly if it had been produced in massive quantities.
BF109F/G--> I used to fly them in IL2.
F-86F---> I know, it doesn´t belong to the WWII, But it is a so beautiful jet!!!!.