I like Zinman's M2, M3, M5, M6, M8, M10. I think the 6th, 8th, and 10th (Carpenter ed) are among the best versions out there. I have no reservations about the fifth. It is well thought out, beautifully balanced and nuanced reading excellently played and recorded. The 9th is pretty darn good too but we have fierce competitions from Levine, Lenny, Solti, Karajan and Ozawa. I just wish the playing were tighter and the recording weren't too backward.