The '83 Pichon that Mr. Latour opened for me a while back was indeed a fine wine. However, as Mr. Latour has pointed out, it did not compare to the '90 La Conseillante. The former being a very good wine; the later being a truly extraordinary wine with fine silky tannins, and a wonderful meaty flavor that was distinctive, but elegant. This was a long enough ago that I'm short on details, but I know the La Conseillante was a "high-90s" wine; and my recollection was that the Pichon was a "low-90s" wine. This would be consistent with Latour's recent rating.
As an aside, the Mordoree CDP was a way-too-young 1998. Still tasty, fun to try, but as expected, very much in need of several more years of cellaring.