Taking up tpsonic's point as to labels likely to produce reference quality recordings, that is a good way to go about finding top rtecordings.
My favourite at the moment, would be the german label Stockfisch. If I had to think of one CD, it would be SaraK's Waterfalls, on that label. I can't think of a better sounding CD in my collection.
Other top labels would include, Reference Recordings, DNM, FIM, Linn and Sheffield Labs. This is'nt complete, I am sure MofI is great too, but they are too expensive.
One gripe, is why do so many Top labels produce rubbish music. Naim comes to mind, with the exception of Forcione. Most XRCD's seem to be of forgettable Japanese jazz singers too.