I would add that Fedor, Chuck Lidell, Anderson Silva, Cain Velasquez, Frankie Edgar, BJ Penn and most of the top level MMA guys have just ok physiques. Some even have small guts.
Pete Sell, Chiek Kongo, Bobby Lashley, Phil Baroni all have perfect physiques with rippling muscles. All are average to below average MMA fighters (for their level).