Richard, your list is bizarre! Surely, Gene Vincent, Johnny Halliday and Eddie Cochran are/were inferior versions of Elvis! I can't take Eric Burdon seriously! He's Geordie for god sake, and so why does he sound like a mix of Muddy Waters, John Lee Hooker and god knows who else! Tommy Steele! That's got to be a wind up! And Lonnie Donegan, too. Levi, yes! Gladys, maybe. Don't really know Desmond.