Celine by a mile!!!! I love Waits and Dylan as songwriters, geniuses even, but anyone who thinks that what these guys do when they open their mouths can be described as 'singing' needs to be locked in a padded cell with Luciano Pavarotti's Greatest Hits playing on a loop for 24 hours if they want to know what real singing is!! I don't think I own a single Celine Dion record, but I have heard her sing and she has a beautiful tuneful voice, Waits sounds like his vocal chords have been destroyed when he swallowed a corkscrew from one of his bottles of bourbon, and Dylan couldn't sing for crap even when he was 25-30 years old, and I think now he's nearer 70.