I think he delivers a terrific vocal on the little-known "This Way to Happiness" off of his
Solo Collection. It's exuberant, heart-felt, powerful, and versatile - the way he sings "Lord I've been searchin' for what seems like forever now" is terrific, just the right combo of rough and smooth. Another great moment: "Like an angel from above, you came down and rescued me." That's just a couple of many. He really goes full-throttle on it.
On Amazon you can listen to a sample of it here:
http://www.amazon.com/Solo-Collectio...olo+collection
But I say just buy the track for $1.29 - it's worth it!
It's also available on iTunes if you prefer that, and there's a longer, better sample excerpt in the iTunes store if you just want to listen to a clip.