Nothing new production is "as good in every way" as any NOS tube if both are in proper working order. I've dealt with both for over 10 years. Tone is totally subjective but longevity and quality of materials used are not.
There's a few 12AX7 shoot outs that you can read the results of. And nos vrs New production stuff. NOS wins everytime. I doubt any new tube made today will spec out to or sound as good as RCA.
I'm still useing my old supply of Tung Sol 5881's, and RCA pre-amp tubes. But I've also had good luck with the new Sovtek EL84M's, and Sovtek made Svetlana 6L6's.