I like the song "No woman no cry" which is wonderful, all the words I mean the lyrics are so briliantly wrtten, it reveals every passion for the song and the wordings, not forgetting the emotions attached to it when Bob Sings.
all the songs of bob marley are unique this is the perfect answer I think! no woman no cry! 3 little birds! Get up, Stand up! I Shot the Sheriff! Jamming! all of them are the most beautiful songs on earth! from those two songs i prefer 3 little birds!