Bruckner 6

Commentators have been saying that this is the most difficult Bruckner to understand. I can hardly find anything about good version of this symphony. I have got versions of Celibidache, Klemperer, Karajan, Tintner, Barenboim, Haitink, Solti, Jochum (both DG and EMI), Wand, Chailly, and Masur. My ears tell me that Celi's and Klemperer's versions are the best. Any other comments?