What would you most like to say to him or ask him? For that matter what about any of The Beatles themselves?
That's a very thought-provoking question, Kelley. It's in two parts so as for George Martin, I would ask him what he learned, musically, from each of The Beatles.
As for the surviving Beatles, I would simply ask Paul how he felt when he got off the airplane at Idlewild Airport on February 7, 1964.
I would ask Ringo for his autograph.