Here's my rankings:
1. Al Green - a classic by a master. The definitive version.
2. Seal - I like the arrangement and his interpretation. Definitely smart to not do this like Rev. Green.
3. UB40 - although the vocal performance is mediocre, I like the arrangement.
4. Etta James - kind of a blah arrangement but she's still Etta James.
5. MJ - is that a Casio?
Thanks for posting these. I didn't realize Etta James had a version of this song and I had forgotten about Michael Jackson's (with good reason).