John,
I own the Barenboim and Lopez-Cobos recordings: the latter is a 'tidy' but well played performance (and on 2 discs).
Though I'm an amateur orchestral horn player, I think the Staatskapelle Berlin's horns sometimes are too prominent. Same goes for other instruments at other points. I attribute that to the level being adjusted 'on the fly'. I'm listening to the the first movement right now, and a perfect example of the effect just appeared. Between 6:40 and 6:50 (Rehearsal 7 in the score), the loudness and detail of the stopped horns changes markedly. Maybe its just a matter of someone pointing more toward a mic, but I think not. Similarly, the oboe's last, held note, marked pp in the score, just buries the harp and horns. Effects like this irritate me.
Russ