The designs from the 1980s and early 1990s were still the best imo. They were minimal but still had creative design and logos. Now when we look back they have a great retro vibe, but that's because they were great designs that have aged well.
For example outside of the classic like the Lakers, Celtics, etc. and the ones who they've decided to keep like the Hornets, Heat, Magic if they kept the Timberwolves, Mavericks, Nuggets, Bucks, Hornets designs from the 80s they still would've been great today.