These strong preferences for the music from when one was in ones teens, is also roughly true for the "best" movies ever and the "best" television shows ever.
It seems safe to say for most players, the "best" D&D edition was whichever one was happening during ones teen years.
As a corollary, for any design developments that are happening today, the ones that most resemble the "best" edition will feel like the "best" ones.
As an other corollary, the best way to ensure the success of future D&D is to look closely at whatever teens are doing now.
The rosy-colored glasses of nostalgia for ones teens, even hold true for absurd questions, like "When was the least crime?" The world as it was during the formative teen years profoundly shapes the perceptions and preferences for the rest of ones life. Statistically, speaking. There are of course individuals who prefer the newer trends and who dont self-identity with the survey results. But that people generally tend to be under the influence of nostalgia, is worth knowing.