Chick Corea's "Is" sessions were the first time I heard him in such a context - still very much worth hearing:
IMHO his playing was a little too busy to be one of my favourites. But I love the Directions and Special Edition albums. Saw him live twice with these groups. and it was great.
Unfortunately the last time I saw him, in a trio with Foday Musa Suso and Jerome Harris, he seemed kinda uninspired, playing routine grooves instead of trying to sound a little more "African". Foday Musa Suso was great, really leaning into the music, but Jack played like he was watching the performance from his favourite tv sofa.