Whatever. While I certainly find the Boulez M8 to be pretty interesting, no-way would I place it at the top of the heap. For one thing, as John Kim has pointed out, why is it that Part 1 has plenty of organ, but there's waaaay too little organ at the end of Part II? What about the fortissimo tam-tam smashes at the end of the symphony? For the most part, all you can hear are the cymbals that double them. The offstage trumpets sound just a tad wimpy to me also. I like Boulez's protracted ending of Part I (Gloria!!!), and Johan Botha is great with the difficult tenor solos. But do those pluses make it a front runner?
I also disagree with Ken Smith's assertion that the ubiquitous Solti M8 is a better "budget" buy than the Antoni Wit one on Naxos. Sure, Wit's Mahler 8 costs more than the Solti, but I would rank it higher than either Solti or Boulez. I believe that Dave gave it a 10/10 at Classicstoday (if not, it received a strong ranking regardless). I would also place the "Great Rec. of the Cnty." remastering of Tennstedt's excellent studio recording above Solti and Boulez as well. Why is this that Tennstedt's isn't better loved in England?
Two positives: Smith had very kind things to say about the Bertini Mahler 8 (so why not take it more seriously?), and he rated the Bernstein DVD of M8 above the Tennstedt. In his '90s remake of Mahler 8, Tennstedt greatly lengthened his "interpretation" in all the wrong spots (pretty much every harmonic cadence point).
Seriously folks, here's the point: Why not hold off on doing such a round-up until both the MTT/SFSO and Gergiev/LSO (St. Paul's Cathedral) M8 recordings get issued.