I would say Honey You Know Where To Find Me, since Morrissey's vocals on that song sound a little effortless and at the end you hear him coughing etc. but this is because it was an unfinished track so I don't know if it qualifies.
Pregnant For The Last Time is a bit strange for Moz. It's an out and out rockabilly song and although at the time he was adding a rockabilly edge to most of his live songs I can't recall any other studio recording having such a strong rockabilly sound. Not out of any other singles anyway.