Bob Babbitt was one of those great musicians who made it look so easy. I've played with some studio musicians, and they make the transition from one gig to another look seamless. An underappreciated talent for sure.
Jon Lord was a mainstay in my teen years and both he and Rick Wakeman made me wish i'd learned to play keyboards.
As the (now old) Righteous Brothers song says,
"If you believe in forever,
Then life is justa one-night stand
If there's a rock 'n' roll heaven
Well you know they've got a hell of a band...