For a brazenly emotional take, any of Bernstein's takes should do, with the final DG rcording in the best sound. For a cooler, more precise, splendidly recorded version, I'd say that Esa-Pekka Salonen is the way to go. (It's my personal favorite version of one of my least favorite of Mahler's symphonies.) Kent Nagano's take is theatrical and in fine sound, too.