skyjedi2005 said:
Was Lang alive to comment on what he thought of Moroders version?

No, he died in 1976.

I like the Moroder version a lot- it was the first version of the film I ever saw. My Mom took me to see it at a movie theater in NYC. I was able to get a copy of the laserdisc at a reasonable price a few years ago on eBay. I'm glad they're doing another restoration of it with the newly-found footage, but I'll always associate the film with the Moroder soundtrack (and I like the color tinting as well).