Hot Take: Coltrane
This treads on sacred territory for some. Hear me out before you blast me.
The title tune of Giant Steps is one of the weakest songs in Coltrane's entire catalogue. Three chords are the melody, and it's a weak one. Sing it. It's not melodic at all.
It's not even an interesting harmony. The song modulates in a cycle of three major thirds using II-V turnarounds, the most common chord combination in Jazz. Musicians find it difficult to play because the key changes happen quickly and in unusual places.
The structure might be unusual, but it's more of a clever novelty than a groundbreaking innovation. If anything, the structure is constraining. Maybe someone, somewhere has done something interesting with it, but I've never heard it turned into a moving ballad and attempts at new arrangements sound stale. I have other things to say about A Love Supreme and the Vanguard record with Dolphy, but that'll have to wait. It's all The Emperor's New Clothes.
Coltrane's legacy suffers from guitar hero syndrome. Fans focus on the pyrotechnics of his "sheets of sound" and hsve created a Shaman-like mystique around his eccentric writing. That moves the emphasis away from his beautiful tone, his soulful blues and work as a sideman. That's where his genius was. He was a much better player than composer.