Is there a type of brain colour that is better than the others?

No, the article explicitly states that there is no right or wrong brain color. It explains, "Are any of the Brain Colours particularly significant? Are any of the colours 'wrong' or harmful for our personality? There is no right or wrong colour. It's just another facet of ourselves. Just like a gemstone, we value others and are attracted to the best features of their personalities." This indicates that all brain colors are simply different facets of an individual's personality, with no inherent superiority or inferiority.