I have the green label and love it. I have no idea how it would compare with the white and orange. The owner of Upscale Audio claims that there is no difference, but I am sure that some of our tube experts would disagree. All I know is that the difference between other tubes was hard for me to appreciate. The Amperex 7308 JAN green (dated 1968) was the first tube that totally stood out with soundstage and musicality. It remains my favorite tube.
I doubt there will be any major differences between different color variants. I guess it's more about the collectibles value. Others want those JAN tubes and others USN navy tubes etc. In the end they all have been designed for military applications and they should be top quality.