Here's a long, multi-year thread on I Love Music about John Coltrane's A Love Supreme being "over-estimated." Lawrence the Looter links it with the Who's Tommy, of all things:
i always thought of a love supreme as coltrane's tommy; it was necessary, it was a milestone, it certainly has its moments, but ultimately it's a transitional work. like tommy, a love supreme really came to life in a live setting (even though it was only played live once or twice).
A live version of A Love Supreme was just performed in Boston yesterday.
I like ALS, even in its component parts. I made an MP3 of just Elvin Jones' drum solo at the start of Part 3. And I posted earlier about liking the McLaughlin/Santana versions although I'm not crazy about their all-white suits.
Someone on that ILM thread also suggests Miles Davis' Bitches Brew is a murky mess. Murky, yes; a mess, no.