What correlates with fan interest in the Stanley Cup Finals?

Correlation between "interest" in a matchup (based on TV ratings + Google searches) and various measures of market size, star power and team quality, 2010-2023

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The harmonic mean was used in cases where a combined measure of both teams was needed for a given category.

Chart: Neil PaineSource: Wikipedia, Hockey-ReferenceCreated with Datawrapper