* Campus Size and Culture: A large state school will have different dynamics than a small liberal arts college.
* Recruitment Strategies: Some organizations are more aggressive or effective in their recruitment efforts.
* Perceived Social Status: Popularity is often subjective and based on perceptions of prestige or social connections.
* Alumni Network: A strong alumni network can contribute to a fraternity or sorority's perceived appeal.
To find out which fraternities and sororities are considered most popular at a *specific* college or university, you'd need to do some research on that individual institution. Looking at their Greek life websites, student newspapers, or even asking current students would be good starting points.