I'm not a huge Beatles fan - my Dad was though. I wouldn't say I have a personal favourite - when I was a kid it was Ringo and I used to tell off my Dad because he bought everyone else's solo work except for Ringo's. xD I would find a debate over the best member of Yes more interesting.

EDIT: Midgar Mist, here's one to add to your list:

-He bought Ringo a drum set when Ringo was threatening to leave during the White Album sessions.