According to Google Trends, High School Musical has a higher search volume than Glee in the past 12 months. This means that more people are searching for information about High School Musical than Glee.
Additionally, High School Musical has a larger social media presence than Glee. The High School Musical official Facebook page has over 20 million likes, while the Glee official Facebook page has only 11 million likes. The High School Musical official Twitter account has over 5 million followers, while the Glee official Twitter account has only 3 million followers.
Finally, High School Musical has been more successful at the box office than Glee. The High School Musical trilogy has grossed over $1 billion worldwide, while Glee has grossed only $200 million worldwide.
Therefore, we can conclude that High School Musical is more popular than Glee.