Herzlich tut mich verlangen, BWV 727 (2 versions)

This isn't a comparison about which is 'the best version', since these organs and the room they are in, are very different. I like them both for different reasons.

00:00 Stertzing (1702), Erfurt
Oberwerk: Principal 8'
Brustwerk: Gedact 8'
Pedal: Subbass 16', BW-P

I've changed the pitch to 465', Werckmeister III. Not the original temperament, but it's debatable which temperament Stertzing did use when this organ was built. Stertzing was valued by the Bach family. So you could call it a good organ for some Bach.

02:31 Köck (1700), Obervellach
Hauptwerk: Principal 8'
Rückpositiv: Gedeckt 8'
Pedal: Subbass 16', Gedecktbass 8'
Pitch: 440', Barnes

This organ is very well suited to Southern-German and Austrian baroque music. But some Bach pieces do sound lovely on it, especially with the beautiful Principal as solo stop.