I have never myself been that big of a Bruckner fan, but this year I resolved to become better acquainted with the 5th and 6th. The only Bruckner symphonies I have ever heard live iare the 4th, many years ago under Sanderling in Toronto, and the 9th, equally many years ago in SF under de Waart. I have shared the view that the 8th is the greatest Bruckner symphony, or put another way, my favorite, but I recently purchased the SACD with Blomstedt and the Leipzig Gewandhous on Querstand doing the 6th, and it is starting to come together for me, and I have been listening to my SACD of Harnoncourt doing the 5th in anticipation of hearing Blomstedt conducting the SF Symphony this Friday night in the 5th. I have heard that the Klemperer recordings of these two, especially the 6th, are special so I plan to seek those out (on EMI LPs if possible, which makes it tough when you live in the US!).
Tom