After reading some very helpful and expert reviews on Amazon, I chose this version.I couldn't write a comparative review, though I did listen to a few samples to try to understand better the points the experts were making. It's a wonderfully-played, beautifully recorded version, and at a tenner for the two CDs, it's more than value for money. It certainly added a lot to my Christmas!
And I encountered no problems downloading all Parts and Numbers.
1987: John Eliot Gardiner, Anthony Rolfe Johnson (tenor, Evangelist), Anne Sofie von Otter (alto), Olaf Bär (bass), Hans Peter Blochwitz (tenor), Nancy Argenta (soprano), Monteverdi Choir, English Baroque Soloists. Archiv Produktion.