I'm not sure if quality vinyl and good pressings are always connected.
Re: pressings, the best luck I've had on vintage US pressings has been Columbia and RCA-Victor. Everything else has been pretty inconsistent - including such sacred cows as Blue Note, Impulse!, and Prestige.
European pressings are pretty wildly erratic but Teldec, German Polydor/DGG, Vogue, Transatlantic and Esquire are pretty good.
Japanese pressings aren't always high quality. I've had some really crappy Victors, for example.