* Economics: Consistently a very popular choice.
* Political Science: Another very popular social science.
* Psychology: A large and consistently popular major in many universities, including UCLA.
* Biology: A popular choice within the life sciences.
* Business Administration (possibly within a specific department like Anderson): While often categorized differently, business-related majors are almost always highly sought after at UCLA.
It's crucial to remember this is an educated guess based on available information. The exact ranking shifts slightly each year. For the most precise data, one would need to consult UCLA's official enrollment statistics if they are publicly released in a sufficiently granular way.