I couldn't say that I've listened to a lot of his stuff, but ever since I bought "A Go Go" a long while back, I always been blown away by it. It's definitely in a league of its own as far as I'm concerned. I did buy a few of his other albums afterwards, but didn't think they were anywhere close.
Here's a live clip of Chank from that album...
http://www.youtube.com/watch?v=rgyHqJ4U1UE
The whole album has a similar cool groove to it.