I first heard this oratorio in 1959 in an obscure corner of Gloucester cathedral during the Three Choirs Festival. I was able to see nothing, but I bought the score so was able to follow it pretty well. In 1961 I sang with the Hereford choir at that year's festival. It was a great honour to be with the three choirs who knew it so well. Sadly, I didn't; and I don't recall a rehearsal, though I suppose there might have been a run-through.
I owned the Barbirolli version on LP for many years and now own it and the Britten versions on CD.
On DVD the St Paul's Cathedral version under Andrew Davis is undoubtedly the best of the three versions, and I recommend it it unreservedly. Philip Langridge as Gerontius is brilliant. Alistair Miles startlingly powerful, and Catherine Wyn Rogers superb. Andrew Davis also puts his heart and soul into it, and I don't know how his hair stays pretty much in place. The choir is well-rehearsed (unlike me!) and sings with perfection.
The Penguin guide gives it a rosette and I am glad I followed that recommendation.
A minor gripe. I had to turn the volume right up. Fortunately my machine could take it at that level without distortion. My neighbours have not complained.