You're the PM of Google Doodles. What would your top three metrics be and why?

Focus on identifying metrics that reflect user engagement, brand impact, and operational efficiency for Google Doodles. Consider metrics like daily active users interacting with the Doodle, the share rate of Doodles on social media, and the time spent on the Doodle page. Justify your choices by linking them to user experience and business goals, such as increasing brand visibility or enhancing user engagement. Be prepared to discuss how these metrics can inform future Doodle designs and iterations.