I hope Has Zimmer's soundtrack is good. I am a fan of some of his material (Inception, Gladiator) but he's become the generic go-to epic movie composer and his work has been hit or miss lately.
I like some of Toto's contributions for Lynch's Dune but Brian Eno's lone track 'Prophecy' was the highlight with it's mystical other-worldliness.
Another favourite is the re-arrangement of the Amiga Dune game soundtrack released as Dune: Spice Opera.