The Attila Zoller Quartet - The Horizon Beyond (EmArcy, 1965)
with Don Friedman, Barre Phillips, and Daniel Humair
I think Jarrett's records with his "American Quartet" (including The Survivor's Suite) are the most interesting LPs he's made.
My first box was the Complete BN Art Blakey 1960 set.
These days, I usually rip the discs to MP3 and put them on my phone. Then I make playlists of the original albums. I prefer to listen to the music as it was originally sequenced (assuming it's music from the LP era or later).