I think The Killer has more hurt in his voice on this song and thus gives a more soulful performance. To be fair to the Ray Charles version, the lush orchestration and backup singers make it a bit too slick and polished sounding. In contrast, the rawness and sparseness of the JLL arrangement serves to give it an edge in that regard. All IMHO and YMMV.
Ray Charles couldn’t hold a candle to JLL in piano playing. His cousin, Jimmy Swaggart, is also an awesome piano player. Must run in the family.