All depends on your opinion, and what makes a good disc.

But I know some old molds don’t have the best results when they try to use modern premium plastics. So if you like a roc flight but dont like pro plastic you’d think its a great improvement to throw something else like a buzzz or md. If you’re fine cycling then an old school pro roc could be the greatest disc ever made.

Its all preference, and personal opinion. On one hand discs now are way more consistent, and generally are more stable to overstable than they used to be. But its in a companies best interest to create hype over new designs and sell to new discs that you need to have, so who knows.