The first is the 1971 rendition by Russell. Next is the incredible Ray Charles. He will never be equaled. Finally, is Karen Carpenter. Russell wrote many songs for the Carpenters. Until I listen to her again, I tend to forget what a beautiful voice, especially in the low ranges, that she possessed.
Although they're all terrific versions, I must say that I prefer the emotional delivery of Leon Russell himself. Which do you prefer?
Leon Russell - http://www.youtube.com/watch?v=37dw2r45Xzg
Karen Carpenter - http://www.youtube.com/watch?v=_PMgmgDq2Fo&feature=related