With you on the Clark and the others that you mention.
Never been hugely impressed by the Don Byrd BNs, though strangely I enjoy the Transition material (what I have of it, anyway).
Andrew Hill I find overrated in general, and the insane touting that his BNs get contributes to this. But to each their own.
The Don Cherrys are good but he's done better, often with Swedes (though I do like the Durium).
Mobley is probably overrated, but I like the sessions I have of his. Ditto Brooks - touted above and beyond, but the records are quite good in my opinion. And hell, Brooks wasn't touted enough at the time, so might as well overcompensate. This leads me to a question (maybe another thread): how highly rated were some of these guys at the time? Morgan, Mobley, etc. were obviously given a lot of due in the '60s, but what about figures like Duke Pearson?