Another personal view here: The repetition on Drunken sailor (and to some extent Hunting the Wren) is tolerable because they are community singing, so the main reason for the repetition is to allow everyone else to join in. Also, since in Don's case a new verse was invented every time, that went a long way to keeping up the interest. So these are not bad songs to join in with.. But it becomes a problem if they are songs to listen to, perhaps on a CD.