I personally feel that the most elegant refutation of moon landing hoax accusations is the Cold War itself. Russia (USSR) was tracking every single move we were doing, with radios, telemetry, telescopes, and probably a handful of spies in NASA. Do you think that if the Communist Soviet Union had any opportunity, whatsoever, to expose NASA as a giant fraud, they wouldn't jump on it immediately?
To say that the moon landings were a hoax is to directly imply that Big Red was pulling punches on the USA.
Of course, you could say that lizards just orchestrated the whole thing, Cold War and all....
One of my school's alumni, George M Low, was the manager of the Apollo missions, and as such, there is a small museum dedicated to him in the building, also dedicated to him. Quite the hullabaloo. I'm pretty sure we have moon rocks, too.
It's not just 3 people that experienced the moon landings. Hundreds (thousands?) of engineers and scientists had to design all the rockets, spacecraft, landers, suits, everything really, plus all the management and higher ups, and the people controlling the funding. ALL of those people would have to keep quiet.
Plus, we definitely built the Saturn V rockets and blasted them into orbit, those certainly weren't faked - all that effort, just to go around the moon and come back? It's like that episode of Tiny Toons where they go to Happy World Land just to ride the monorail. Yeah, okay.
It's honestly pretty ridiculous once you start looking at all the details carefully.