Well, my favorite aircraft from WWII is the P40 Warhawk. This plane soldiered on years after if was obsolete, and it beat the best the Japanese and Germans could throw at it. It was with us from '41 to '45, and while it wasnt the best machine built at the time, it answered the call, and it shot down many a plane during its career. Most of all, I like it cause its just a cool fighter. It couldnt match the FW190, BF109, the Japs nimble fighters, etc., but she still brought em down none the less. It had its drawbacks, but it did its job pretty good in my book.
God Bless