"Thanks for the heads-up about Zinman's recording of the Eighth. I've got Tennstedt's studio recording on EMI, but I'd like a more sonically advanced supplement-- I've been eyeing Jansons/RCO as a possibility."
Jansons has a better cast of soloists than Zinman, and also possesses very good sound quality. But it is also soooo interpretatively neutral as to make Zinman sound like Furtwaengler in comparison. At least, that's my take on it. Jansons has slightly louder tam-tam smashes, but Zinman has a much better sounding organ. Zinman also makes a strong crescendo on the very final chord. Don't rule out the Markus Stenz on Oehms Classics either, which has THE greatest ending to the 8th symphony ever! The rest of it, however, seems a tad breathless. Also, the sound quality is just a tiny tad constricted in comparison to the Zinman. It's kind of tough call. Jonathan Nott on Tudor isn't far behind these three either (Jansons, Zinman and Stenz). We're spoiled.