If it's "good" examples of Danny Boy your after then two of the very best are, Eva Cassidy's version from her "Imagine" album and Tommy Fleming's epic rendition from De Dannan's "Hibernian Rhapsody". I first heard "Naff" from a newspaper report. Appearantly Princess Ann, (who endearingly takes after her da, "Phill the Greek")told some bothersom reporters and photographers at some public sporting event to "...naff off..". The word has since slipped into common parlance allong the lines of , duff, crap, mince, below required, expected and implied quality..... Mostly it's not the songs that are naff, more the "singers" and the arrangements that are the problem.