Pax is fine, but it feels like a Blue Note pickup date more than most of Andrew's BN dates. There are a lot of AH albums I would pick up before this one.
The recommendation of Black Fire is right on. This is one of the very best AH recordings, period. I would put Judgment and Andrew!!! (along with Passing Ships, which you have) pretty close in the next tier. Compulsion is also in that next tier, but it's more firmly in the avant-garde category than the other recordings I'm mentioning - not sure if that is a minus for you as a listener.
As far as post-1970 AH, Shades (w/Clifford Jordan) is a fantastic date, albeit much more straight-ahead than the BN stuff. And I love Dusk too.