Yes, Equinoxe is the best album for the following 8 reasons in my mind.
1. Equinoxe Part 5 - simply the greatest JMJ track, if not the best instrumental track of all time.
2. Equinoxe Part 5-6-7, that gorgeous funky bass sequence and how it changes in depth and tone. In fact all the transistions between tracks are spot on - later albums (like Chronologie - Parts 4-5) are quite poor by comparison.
3. Equinoxe Parts 4 and 7, which are fantastic tracks in their own right.
4. Equinoxe Part 3 - there is something really quite wonderful about this ever so evocative piece, so unusual but beautiful.
5. Michel Granger's artwork - absolutely stunning imagery.
6. The pictures of JMJ and the office blocks used on the back cover- probably the best pictures of him.
7. The fact that the music is upbeat yet deep and moody - only has Zoolook (particularly with Ethnicolor) managed to be on a par for this.
8. There's no real turkey in the album, all the pieces show JMJ on top form.
The only thing I would say as a minus point is that compared to Oxygene, I think Oxygene 6 is a better final track than Equinoxe 8 - but in all other ways, I think Equinoxe is the better album.