Sample reasons:
title
lyrics
genre
range
tone
tune
pitch
mood
acoustics
tempo
accompaniment
message
aesthetics
et cetera
Alternatively, for whatever reason(s), what is a song you think sounds better when sung by a man rather than by a woman? And please state the reason(s).
~
I think there’s something truly vital to the aspect you cover in that the original artist, especially also being the songwriter as in this case, makes a strong argument for a preference for by whom it is best sung.
~