Narrowing it down to one is tough, but I will name some favorites and then eliminate many to get to one:
Kiedricher Grafenberg: great wines from Weil, but only Weil, so no to this one
Rudesheimer Berg Schlossberg: lots of producers make very fine wines, but a significant tendency to botrytis even in lower pradikats and not enough mineral definition, so no to this one
Erbacher Marcobrunn: anybody consistently making good wine here these days? judgement reserved
Rudesheimer Berg Rottland: Ah. I think this is the one for me now. I've had great dry and sweet wines from here on a regular basis. Fine mineral definition, but all the Rheingau power. Botrytis when and wehre it belongs and also whistle clean wines when that is appropriate.
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