After hearing this Clash cover and profound remix I bought the Willie Williams version. Williams has all the parts, but doesn’t have the whatever it is that makes the Clash version epic.
The Clash version is also not religious. And while the whole Clash excursion into the Third World is culturally suspect. To their credit, they seemed to know that. At least a little bit.
If pressed, I’d call this my favorite (most powerful) Clash song.