Tom, over at Crooked Timber, has a list of 15 greatest jazz albums. It's in response to this list, by Norman Geras.
Both lists throw out some fine fine albums...if not a bit centered on post-bop "classic jazz." Tom's list is a little more adventurous...Miles' "Decoy", and some Sco. Well, its always fun to guess at best albums. And I think both these list-ors acknowledge the ultimate impossibility.
To make things somewhat reasonable, I'd have to break into catagories of either mood or style.
Although I did once see an essay arguing that Coltrane and Hartman is the best jazz album period. And quite honestly, I'm oft wont to agree.