Your favorite Mahler recordings on vinyl

I am a bit of a Mahler hobbyist and I find myself in agreement with @edgewear above — with a few additions:
No2 - additional: Klemperer / Concertgebouw, (EMI live)
No4: definitely Klemperer!
No5-6: definitely Barbirolli (maybe 6 with Solti) -- unbeatable passion!
No8: additional: Horenstein (BBC classics)
No9: additional Bernstein / Berliner (DG live)
Das Lied: definitely B Walter / K Ferrier, Vienna Symph (Decca) Ferrier had been diagnosed with breast cancer (of which she died 1 yr later); she sings her heart out. A monumental performance!

Yes, of course Das Lied with Ferrier and Walter on decca is indispensable. How could I overlook it? But it's in mono, so sonics are somewhat limited. As for that live Bernstein one-off with the BPO on DGG: I didn't mention it because I have this on CD and didn't know it was also issued on vinyl. It's a 'must have' performance for sure, whatever the format. Bernstein's later DGG live cycle (with NYPO, VPO and CGOA) has some great performances as well, notably no. 6 and 7. These were originally issued on vinyl as well as CD. They're digital recordings, which is why I have them on CD. 

I have two pressings of the Horenstein Mahler 3rd.  The Unicorn pressing is flawless but oddly eq'ed and a bit lifeless.  The Nonesuch pressing is sometimes noisy and the center hole of one of the discs ain't exactly on center but string tone can be gorgeous.  Bottom line, the Nonesuch is my go-to choice.

I have the Nonesuch version.  A little oddly balanced in the string section, It sounds great though, and yes, a little noisy.

Agree with the Solti No. 2 and the Klemperer No. 4.  That Klemperer is a favorite of mine. You can get both of them as reissues these days, I believe (mine are reissues).