Great thread!
I've been looking to increase my Hines holdings, and this has been very informative. Especially as regards his Ellington interpretations. Over the years since they were first released I've seen these referred to over and over again as prime late-period Hines, yet there seems to be a luke-warm response to them here. On the other hand, I love the Riverside Monk interpretations of Ellington, which are often dismissed by critics (that might actually be my favorite piano trio ever: Monk, Pettiford, Clarke).
I guess I'll have to get everything he ever recorded and make up my own mind.