I thought IC had a good maths department? It cant be that good considering it is just ahead of LSE in the subject rankings considering LSE dosen't offer undergraduate single honours maths degrees?.... or are the Guardian just s**t?
The methodology used is flawed and their numbers don't add up either...
They rank the quality of staff based on the qualifications they have (and this info may well be out of date).
For the "institution wide" rankings, the "Institution Guardian score" doesn't relate to the individual scores, which they claim it does. If you take the rankings they give, then apply the weightings they give:
Imperial College - 78.63
Oxford - 77.70
Cambridge - 73.03
University College London - 69.80
LSE - 66.63
As opposed to their quoted results, which seem to have been picked out of thin air.