"Just like fine wine and George Clooney, Madagascar gets better with age." - The Bullseye in Entertainment Weekly (June 22, 2012 issue).
"No one ever believes that my hair is curly. Actually, it's somewhere between wavy and curly with an all-around poofy finish. It's as non-committal to any style as, well, George Clooney is to any one woman." - Katie L. Connor in Marie Claire (July 2012)
Katie, does your hair look like this?
George is obviously the go-to metaphor for people writing about things that just keep getting better with age and things that won't commit.
I like those things in a man.