Clapton ripped off so many artists from Jimmy Cliff to JJ Cale. And Layla sucks, 4-5 minutes of wasted radio time, it sounds like two separate songs pasted together to glom air play.
I prefer Billy Ward & His Dominoes over Derek & the Dominoes.
I have always liked the juxtaposition. But the two pieces very plausibly had two separate authors. Completely different styles.