A bit late starting this thread but better late than never. "Duke" is 40 years old today!
With the exception of "Misunderstanding" which I've never been a fan of, Duke is a wonderful album and its two associated B-sides "Open Door" and "Evidence of Autumn" are also very good tracks.
Duke marks the point where the progressive rock and pop/art/soft rock eras of the band intersect, and as such almost every fan can agree that it's a great record.