For me the 10th is Mahler's most life-affirming symphony. Following the 9th's resignation into oblivion, in the 10th Mahler came out of the abyss, went through hell, and finally found love that triumphed over death.
IMHO conductors who recorded only the Adagio tended to try too hard to over-play the music to make a complete symphony out of it, so I seldom go back to such recordings.
I am not too bothered by the difference among performing versions, the instrumentation, the additional composition, one thwack or two thwacks etc. But at the end of the day, I suppose I belong to the Cooke camp. I like the barebone nature of it, not to mention a large variety of recordings to enjoy.
I am under the impression that Wheeler IV and Mazzetti II are both pretty much barebone-oriented like Cooke (is that so?), still they seem to be more eventful (and colourful) and, it could be just me, they sound more intrusive, especially in Scherzo II and the Finale. On the other hand, I like Barshai's rich and colourful orchestration, which I find a more coherent listening experience than Wheeler IV and Mazzetti II. The Samale/Mazzuca is interesting. I think the "enforcement" at various places works pretty well from a listener's perspective. The choice of instrumentation, especially in Scherzo II and the Finale, also sounds less intrusive to me than Wheeler IV and Mazzetti II. So far I have no motivation to hear the Carpenter or Gamzou version. Everything that I've read about them seems negative.
[Cooke I] Goldschmidt/LSO 1964 Live (Testament) - Full of raw energy. Also a collector's item with Cooke's lecture!
[Cooke I] Ormandy/Philadelphia 1965 (CBS) - Gritty! No pussycat allowed. This is not the buttery Ormandy that I know but it's a nice surprise.
[Cooke II] Sanderling/BerlinSO 1979 (Berlin Classics) - Deeply heartfelt, and slightly faster than most.
[Cooke II] Rattle/Bournemouth 1980 (EMI) - Intense, manic, magnificent, but also occasionally all over the place. Deliberate, as expected of Rattle.
[Cooke II] Chailly/RSOBerlin 1986 (Decca) - Clean, rational and beautiful. The opening Adagio may be a bit relaxed, but the rest is no tamed stuff.
[Cooke III] Wigglesworth/BBCNOW 1993 Live (BBC Magazine) - Fluent, agile, shattering, very well judged pace and wide dynamic range. The Finale is one of the most tender and touching.
[Cooke III] Rattle/Berlin 1999 Live (EMI) - A mellower Adagio and more urgency in the inner movements when compared to Bournemouth 80, which give a better balance among the movements. Although still deliberate. The tenderness of the solo flute and the strings that follows in the Finale is magnificent.
[Cooke III] Gielen/Baden-Baden 2005 (Hänssler) - Meticulously balanced, highly expressive. This is one of the most lively and most upbeat.
Gielen also made an Adagio-only recording in 1989. It's more pushy (and faster). Enough said.
[Cooke III] Harding/Vienna 2007 (DG) - Super tender, super smooth and super beautiful in one long breath. There is also a kind of light fluffiness to it. Very Harding-like.
[Cooke III] Wigglesworth/Melbourne 2008 Live (MSO Live) - Richer and weightier sound than BBCNOW 93 Live, otherwise a similar, and excellent account. There is an almost unbearable lightness (of being!

) in the quieter passages in both accounts, but it's slightly less pronounced in Melbourne 08.
[Cooke III] Inbal/Concertgebouw 2011 Live (RCO Live) - Warm, smooth, and glorious; and like Chailly's, after a relatively relaxed Adagio things become more high-octane.
[Cooke III] Dausgaard/Seattle 2015 Live (Seattle Symphony Media) - Turbulent and very much alive and kicking. "Surprised by Joy" in the midst of grief.
[Cooke III] Nézet-Séguin/Rotterdam 2016 Live (DG) - The sexy pussycat of the bunch. Another very tender and touching Finale.
[Wheeler IV] Olson/Polish National RSO 2000 (Naxos) - Not bad at all, just a little bit underwhelming.
[Mazzetti II] López-Cobos/Cincinnati 2000 (Telarc) - Tender yearning, at times idiosyncratic, especially in the Purgatorio.
[Barshai] Barshai/Junge Deutsche Philharmonie 2001 (Brilliant) - Brilliant and magnificent. Playing is superb.
[Barshai] Ashkenazy/Sydney 2011 Live (Sydney Symphony Live) - Much as I love Ashkenazy's Sibelius and Rachmaninov, his Mahler does not click with me, and his Mahler 10 is also unfortunately dwarfed by Barshai's own magnificent rendering.
[Samale & Mazzuca] Sieghart/Arnhem 2007 (Exton) - This is the dark horse! When it's expansive, it moves forward with purpose. When it's required to go berserk, it blows me away.
I don't have a favourite recording; but I suppose one cannot go wrong with Gielen, Wigglesworth or Dausgaard. Rattle, Barshai and Sieghart ought to be heard too. Personally I have a soft spot for Harding's, but I suppose it's not everybody's cup of tea. :lol: