Apparently Andy's imitation was a favourite of Elvis himself.
According to Mike Wallace, Elvis liked Andy the best. Andy's impression of Elvis was reverential. A young Kaufman had, after all, written a book about Elvis, modestly titledGod, hitchhiked to Las Vegas, camped out in the basement pantry of the casino where Presley was performing, and ambushed the King en route to his private elevator to the penthouse. Kaufman chittered and waved the copy of his handwritten manuscript. The King nodded, smiled, and offered his blessing. Years later, on a private tour of Graceland, Kaufman discovered - among Elvis's videos - a stash of Kaufman tapes