If anyone has the opportunity to see Rick Wakeman's solo show, DO IT!
I saw him in a tiny theater in Maryland last year. He intersperses playing his keyboard with telling incredibly hilarious stories (In England he's more well known as an MC and Game Show Host than for playing with Yes.)
He has one about Jon Anderson, one about when he had just gone solo and was drinking heavily and a very "Spinal Tap" moment, one about trying to smuggle a Soviet Admiral's uniform out of the Soviet Union, etc.
"The Six Wives of Henry VIII" still endures a heavy play rotation in my house.
Yes members are all good on their solo tours. I have never seen Wakeman solo, but I have seen Howe and Anderson on their solo tours. Actually, saw Jon Anderson (Solo- Work in Progress tour) early this year at a small theater here in Atlanta. It was cool ... Jon was pretty laid back and told some fun stories.