I did a ranking early last year:
http://209.157.64.200/focus/f-chat/3526248/posts?page=24#24
Interesting groupings; I agree with most of them, but I would raise Truman, FDR and Arthur (Civil Service as it was intended to be) to the Good levels, and despite the fact that I despise him on a personal basis, I would put Clinton at “fair” (he was more of the centrist Dem on the economy, which he had to be with a Rep House, and he didn’t involve us in disastrous wars). I wouldn’t rank Harding higher than “fair” and I would probably have a new category for Lyndon Johnson, “actively evil”.