"Andrew Hill - Point of Departure: I'm surprised that such a good album can come from what proved to be such a minor figure."
He had an awesome run of '60s albums and then continued on and made a few excellent ones afterwards. You should check out: Black Fire, Judgement, Andrew, Compulsion, Dance with Death.
He and Bobby Hutcherson are two musicians from the '60s who I think get short-ended in terms of how many great albums they recorded. I'll put my '60s Blue Notes from these guys up against anybody's. In terms of originality of pianists who primarily played their own compositions, Hill was arguably the greatest of the '60s other than Cecil Taylor.