Well I lost my first reply, so I will try again...
I had purchased the Karajan/DG 6th as a gift (and had not auditioned this version before - risky, but the recipient was quite pleased with this choise). I will likely purchase this disc for myself next month.
I have not listened to the Chailly cycle in a long time, but I remember my pleasure with his version of the 8th. The acoustics, choir, interpretation, and performance were outstanding. Solti still reigns supreme, however I am very pleased with Chailly's 8th. For the 2nd, I tend to grab the Litton, Mehta, and Rattle first - leaving the Chailly behind to gather dust. Chailley's performance has not struck a chord with me, but I listen to the Totenfeier occassionally. I rarely listen to the 1st or 7th - so I need to revisit Chailly's 1st before commenting further.
I will add the MTT 1st next month - after I have time to constructively listen to Zander's 3rd and 6th. I do want to add some additional hybrid SACDs to my collection, and I need to revisit the 1st. I have not yet entered the multichannel realm, and am content to remain 2 channel a bit longer (but I do like the SACD resolution and sound quality).
Adhoc (this is where I wish I had copied my prior comments - now lost):
Based upon the strength of Rattle's opening movement, I prefer Rattle over Litton or Mehta - but only slightly. Instantly, it appears that Rattle is familiar and confident with the 2nd - and the performance supports this viewpoint (IMHO). I am hooked within the 1st movement; and by the time Janet Baker has completed the 5th movement, I am sold. I believe Rattle's 2nd is my favorite performance. I still listen to the Litton and Mehta versions (and believe they are wonderful), but Rattle's 1st and 5th movements make this my favorite version right now. It took a long time before I purchased the Rattle. I thought the price was too steep, but I recently found a used set.