Good song from both artists. Personally I like the cover version by Eric Clapton better, but that is a matter of taste. By the way 'I Shot the Sheriff' was the only number one hit in the US-Charts from Eric Clapton in his career (so far). And Clapton created lots of classic songs.
So: Compliment to Bob Marley for his composition, thanks to Eric Clapton for his interpretation of this song.