I listen to a lot of classical vinyl, and am often shocked at how bad some of the "pro's" recommended recordings are. I suppose if all you ever listen to is Mercury, Columbia, RCA, Philips, and London, then Living Stereo, Living Presence, and FFSS sound pretty good to you. But there's so much great stuff out there that never gets mentioned.
One major oversight in virtually everyone's Classical ratings - if you're interested in LISTENING, as opposed to collecting - Musical Heritage Society. They have some fantastic pressings AND performances of interesting music which is available nowhere else. Many of their in-house productions (including digital recordings) are truly top notch, and some of their reissues are as good or better than the originals.
Rushton's recommendation of Arthur Salvatore's list is right on - a very good place to start. If you haven't checked it out, definitely do so. I disagree with him on a few (e.g. Timegate Brandenburgs, which has gone to mega-dollars on his recommendation alone) - he's overall much closer to the mark than anyone else out there. Also he seems to ignore, or hasn't heard, some really spectacular smaller (and rarer) Japanese and European issues. But his entire website is full of very valuable info - I have copied all his pages to my hard drive in case they ever suddenly disappear.
The DCCblowout website has a lot of very interesting and useful information also if you dig around a bit.