The best recent performance I have heard is Harnoncourt's BPO.
You need to hear Mengelberg and Furtwangler -- at the very least on youtube, so you can decide whether these extraordinary interpretations suit you. I think they are two of the greatest records of anything ever.
I also like Max Fiedler, Kempe, Weingartner, Klemperer, Toscanini.
Kempe with BBC preferably.
Has anyone heard Mackerras and Gardiner or Abbado?
Surely someone has found a good HIP one here