I am waiting for Janowski, and I have for quite a time Luisi/Dresden but not listen yet( beside several other as Nagano,Asahina, Wit, Stein, Barenboim and others)
But I really love this work, it's a perfect imitation of the Alps but also a spiritual and metaphisical work, allegoric of the life itself.
I agree with John, Karajan is outstanding and the remastered cd is better-but no perfect. Mehta and Haitink very good.
Look also for Previn and Wiener philharmoniker in Telarc. The sound is excellent. Also Thielemann and the same orchestra are glorious.
And what about Ozawa and ,ja again, the wieners? (I have also this but not listen yet. Eee the day is only 24h, the music inextinguishable.)
The recordings Ozawa made in the 90's with VPO in Musikverein are excellent, especially as sound.