A lot of totally worthy nominations, especially the nameless 25-year-old who completed a Bomber Command tour over Germany, but I concur with "Winkle" Brown. Served under him in the late 60's, a quiet hero.
The excellent BBC documentary about his life is on YouTube at
https://www.youtube.com/watch?v=szten4iypCM
and the thumbnails beside give leads to many more bits & pieces.
His original book "Wings on my sleeve" is great, his 3 "Wings of..." later ones are excellent on Naval Aircraft, Luftwaffe aircraft and what he calls the Weird and Wonderful. First-hand experience, tech data and a human view of each. Strongly recommended!
Mike