Barry Gordy eulogizes Michael Jackson.At Michael Jackson's moving memorial in the Staples Center Tuesday, Motown founder Berry Gordy eulogized that the title "King of Pop" was not big enough for Jacko, calling him "simply the greatest entertainer that ever lived."Somewhere in Heaven, Sammy Davis Jr. fumes.See, it's been universally accepted that Sammy was the greatest entertainer who ever lived. Now that both he and MJ are sharing the bill at the Great Rendezvous Ballroom in the Sky, it behooves