What is the best sounding Mahler symphony cycle?

Bernstein and Abbado are great Mahler conductors for sure, but the recordings are not really audiophile quality. I still like Abbado best of all on the first, Bernstein on the 2nd, Zinnman on the third, Solti on the 4th, Jansons on the 6th, Bernstein then Abbado on the 6th, Zinman again on the 7th, no favorite on the 8th or 9th, and Zinnman on the 10th. I have not heard any of the MTT recordings.

I'm going to go with Maris Jansonn/Concertgebou for the 5th. Very good performance and very good sonics. I don't have a complete cycle that is uniformly good. I do like the David Zinman on RCA, especially the 3rd and 10th.

Newbee, thanks for opening the door on the Lieder! My hands down favorite is the Bis recording (Malkki& Karneus) of Kindertotenlieder, RuckkertLieder, and Lieder eines fahrenden Gesellen. Oh my, I do love this recording!

Just saw the Zander is recording the Mahler 2 on Linn. Called a "new partnership." Not really a huge fan of Zander, but a Mahler 2 on Linn is going to get my money. Late September release in GB, probably a little later in the US.

Lowrider, Bis is available from all the usual on line outlets. As Schubert indicated, the artistic and sound quality is uniformly good, Very good label!

@schubert .  Len, I picked up the Fisher 4.  Struck me as good but not great.  Still like Solti on 4 though it is not great sonically.  What would you say are Fishers best Mahler efforts.   The next time you miss on a recommendation will be the first.

@mahler123.  Agree on the Gergiev LSO sonics.  Since the thread started I've picked up 3 and 6 Haitink/Chicago.  Great sonics, decent performances, especially the 3rd.   I have high standards on the third, having heard Welser-Most at Severance Hall in Cleveland live.  Otherworldly.

I have the Jansons 5.  I am not a fan of 5, and don't listen much.  The Jansons is my favorite of those I own.  It is a beautiful recording and adequate performance I suppose, but take that with a grain of salt since 5 is near the bottom of my Mahler list.  I bought it based on a favorable review, but I don't recall who reviewed it. 

@rvpiano, I will list the symphonies in order with my preferred conductor.  NSP = no strong preference.  3 (Haitink), ,1(Abaddo), 6(Bernstein), 4(Solti), 2 (NSP), 5(Jansons), 8(Wit), 9(NSP), Das Lied(Zinman), 7(Zinman), 10(Zinman).