It depends on the singer, and whether the tune has a good melody. recently i visited a singers night in the uk.
at least six singer songwriters who had no idea about how to write a good melody[ bring back tom paxton] whose diction was only middling whose voices could not be heard over their guitars.
how are we to judge a song if the words are sung without projection, and the tune is boring, and the song is sung like a shopping list, i thought those wannabe dylan imitators had disappeaerd in 1969, unfortunately not