There are lots of great covers here and I’ll try organon a proper answer later.
For now, and given the songs already mentioned, I am surprised not to see lots of support for Mr. Cash singing Personal Jesus.
Mind you, as soon as I typed that, I realised that I need to mention:-
Bert Jansch’s cover of Davey Graham’s Angie (no, not the Rolling Stones song) and the Stones’ cover or Robert Johnson’s Love In Vain.