I really have fallen out of "like" with Oliver Nelson's arrangements in general, and never really have liked the Monk that much.
I know what you mean about the Gillespie. . .I was pretty lukewarm to chilled about it for some time but the last few times I've spinned it I have liked it more. And this time through I thought the way Dizzy wove in and out of the arrangements very interesting, and I liked that the arrangements didn't follow usual "Ellingtonian" directions.