It seems to me there’s a significant problem with using the global university rankings as a barometer of overall university “prestige,” especially when one is talking about undergraduate education, and especially for undergraduate institutions that are smaller or focused on undergraduate education.
Take for example, the QS global rankings and its ranking for Dartmouth, an Ivy League school. It ranks Dartmouth #203 globally, behind 43 other US colleges, while US News ranks it #13 nationally. Similarly, QS ranks Georgetown at #230 globally, behind 49 other US colleges, while US News ranks it #23 nationally. Notably, QS ranks Georgetown lower than Arizona State (#220), which US News ranks nationally at #103.
In addition, global rankings like QS and Times Higher Education don’t even include schools like Williams, Swarthmore, and Amherst, which lead the national liberal arts category in the US News rankings. Students from such schools matriculate to the very top graduate programs in the country, and anyone in the US knowledgeable about higher education would know that they are excellent schools filled with students having ivy-level stats. Generally, speaking my impression is that the global rankings favor universities with strong graduate programs, and speak less to the academic caliber of students or rigor of teaching at the undergraduate level.
I think most people in the US would agree with me that they would consider the national rankings to be more meaningful than the global rankings, as they are generally more in line with the academic caliber of the student bodies attending the universities. Indeed, US News also has global university rankings, and I’ve never seen anyone use that ranking as a barometer of how US universities in the US are viewed in the US.
While I can speak less to UK universities, I note that if one searches for the Wikipedia page titled “Rankings of universities in the United Kingdom,” it identifies three national rankings that rank the schools as follows:
THE COMPLETE UNIVERSITY GUIDE
Cambridge
Oxford
St Andrews
LSE
ICL
Loughborough
Durham
Lancaster
Bath
UCL
GUARDIAN
Oxford
St Andrews
Cambridge
Durham
LSE
Bath
Loughborough
Warwick
ICL
Lancaster
TIMES/SUNDAY TIMES
Cambridge
Oxford
St Andrews
LSE
Durham
ICL
Loughborough
Bath
Lancaster
Warwick
UCL
Notably, the Entry Standards (in terms of UCAS points), are (per the Times / Sunday times tables) as follows:
Cambridge - 212
St Andrews - 211
Glasgow - 204
Oxford - 203
Strathclyde - 200
ICL - 189
Durham - 188
Edinburg - 187
Aberdeen - 183
Dundee - 176
Personally, I will say that before looking into this issue more closely, I was really only familiar with Oxford, Cambridge, and LSE. Also, I will add that I would be surprised if anyone, anywhere thinks of Cambridge and Oxford as anything other than #1 and #2 (or visa versa) in the UK. Numbers only tell so much, and I think the historical excellence and interview process those universities employ will keep them at the top forever. From what I’ve read from others, there’s a good number of schools that are viewed highly in the UK beyond Oxbridge, but people generally are not splitting hairs about them, other than perhaps for personal pride reasons.
The Wiki article also provides the current global rankings as well for QS, THE, ARWU, and CWTS, and it provides some explanation for why those differences exist.