The Mahler 3rd with Ozawa/Norman/BSO is really terrific too - surprisingly good. Ozawa conducts the 7th very similar to how Bernstein did - even the timings are near identical. As you discovered, the BSO puts out a more beautiful sound than the N.Y. Phil., who obviously play Mahler in a highly idiomatic fashion. My only minor complain with the Ozawa, is that there simply isn't enough of the cowbells and deep bells at the finale's final peroration. In other words, the very end. But I also agree that the "Kindertotenlieder" is an excellent performance. In fact, I really feel that the entire Ozawa cycle is better than most people suspect or realize. I very much like his Saito Kinen Orchestra remake of the "Resurrection", as well as his earlier DG recording of the first symphony, which includes "Blumine" in its original second movement position.
Barry