I like all of his music, but I think he only really started to shine with Because the Internet. It was his first really good rap album. Then with STN MTN / Kauai he really started evolving into more serious and interesting sounds. "Awaken My Love" though, that is his crowning achievement so far. While it's definitely influenced by George Clinton and D'Angelo, I don't know of any other albums that sound quite like it. It's really unique.