What does it even mean to be the best airport in the world?

Skift Take
Getting everything working well is hard enough, but beyond that airports like Changi get it right by incorporating the local culture into the ecosystem, without too many gimmicks.
What does it even mean to be the best airport in the world? Efficiency is certainly at the top of the list....But those tasks are the baseline; any airport, in theory, should be able to get them right