I never said there wasn’t such a thing as popularity when it comes to colleges, and I certainly never said a word as to whether I liked it or not. So please don’t put words in my mouth or assert I said something I didn’t. That is just rude. I focused mostly on your assertion that the number of applications is a measure of popularity. OK, I can try and make it even clearer why your assertion that the most applications means the most popular is flawed, at least as I think most people consider popularity as a concept.
When schools like the University of Chicago went on the Common application for the first time, are you really claiming they became 50% more popular than they were the year before? And that compared to a school who had the same number of applications as Chicago the year before and did not go on the Common App and had no increase in applications, Chicago is suddenly 50% more popular than that other school? If so, I see zero use for that definition of popularity. It tells you nothing other than you are more successful in getting people to apply. To take that a step further, any given school attracts attention and becomes a high choice of a student (which would be my definition of popular, btw) and therefore gets an application from that student (in many cases, not all as I will show and therefore not part of my definition), for a variety of reasons.
The University of Michigan is popular (a top choice) with Student A because it has a great sports scene. With Student B because it is in state. With Student C because it has a super reputation for engineering. With Student D because of the business school. They all apply, but it is popular with them for different reasons, which strikes me as the far more important thing for a school to get a grasp of. Now, one might be tempted to say, they all applied so even if for different reasons it measures popularity. But then there is Student E, who has Michigan as her most popular school, the one she wants the most, but she lives in Nebraska and cannot possibly afford Michigan. So she doesn’t even apply. This is certainly not uncommon. In fact it is quite common, as we see on CC all the time, and this is a very small slice of what is going on in the rest of the applicant pool. In fact CC skews affluent so it is no doubt more pronounced out there. This happens with schools like Harvard thousands of times a year in upper middle class and middle class families, and even more often with other privates that cannot afford the generous financial aid Harvard offers.
To me it is theoretically simple to measure popularity, at least how I thought you meant the concept originally. That is, What school would you most like to attend? You would just do a survey where you asked every high school senior (or maybe just those planning on going to college, probably) the simple question “If you could attend any college in the world without having to worry about getting admitted or paying for anything once you were there, which school would it be?” If you want to restrict it to the USA, that’s fine. I think that would pretty clearly answer the question of which school is the most popular. Now I think it is safe to assume that at the top of that list would be schools like Harvard, Princeton, UCLA, Berkeley, etc. I could be wrong, who knows until someone does this. But if I am right, then it certainly strains credulity that Stony Brook, who got 42,000 applications is more popular than Harvard, who got 37,000 applications that same year. Unless you want to just say that applications are the measure of popularity BY DEFINITION. In which case I am not sure what this thread is for.