I've long enjoyed most of the releases from Reference Recordings, both on Vinyl and on CD. My favorites have been everything conducted by Eiji Oue. A real standout for me has been Rachmaninoff's Symphonic Dances on HDCD.
I also agree with those who like Sheffield. I have everything they ever produced on vinyl and CD, the Track Record kicks ass for sure but so do Lawrence Leighton Smith and Dmitri Kitayenko on the wonderful "Moscow Sessions".
A great question but way too many possibilities to narrow it down to less than a few hundred. It really depends on the mood, the wine, the time of day and most importantly for whom you are playing the system.
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