What really kills me (in the very best of ways) are the Dark Star's from the Europe '72 tour. Something really special going on back then.
It starts out pretty, goes off very far away, and then comes back to pretty again. LOVE !
Actually pretty interesting to read everyone's responses here. I love me a good Weather Report Suite--it's the whole package, beautiful harmonies, great lyrics, interesting chord progressions, and intense jams that get completely deconstructed into chaos before returning to serene beauty. A psychedelic journey in a nutshell.