What is the number one mango in the world?

Could you please clarify what is meant by the phrase 'number one mango in the world'? Is it referring to the most popular mango variety globally, the one with the highest nutritional value, or perhaps a specific mango that has garnered international acclaim for its unique flavor and quality? It's an intriguing question, and I'd love to hear more about the criteria used to determine the top mango in the world.