I think they all had a good sense of humor but John makes me laugh the most. He was goofy but also very clever. Of course, it probably wasn't much fun when he used that cleverness for sarcasm.
"'I Dig a Pygmy', by Charles Hawtrey and the Deaf Aids... Phase One, in which Doris gets her oats!" - again from Let It Be, John cutting up. The 'deaf aids' is what they called their amplifiers, and Charles Hawtrey was a British actor, a real person, who had about 70 film appearances in British cinema between 1922 and 1972.
"I'd like to say thank you on behalf of the group and ourselves and I hope we've passed the audition." - spoken by John, not at the end of the studio session for "Get Back," but from the rooftop concert; Phil Spector edited it back onto the end of the "Get Back" track. And yes, that's also John at the beginning drolling, "Sweet Loretta Fart, she thought she was a cleaner, but she was a frying pan."