I’ve been blogging about the various university league tables for computer science for over two years now…and I’m not entirely sure whether this is actually useful beyond collecting them in one place. There are a multitude of UK and international university rankings, each of which have varying methodologies and weightings. It remains to be seen what they each contribute or how they differ, or what analysis you could make that could not be done by looking at raw HEFCE/UCAS data. From here onwards I will most likely continue to publish the three main UK league tables top 10 for computer science, as well as the rankings for Welsh institutions, but with minimal commentary.
So, today saw the publication of the Guardian University Guide 2015; check out the top 10 of the (renamed) Computer Science and Information Systems category (see all 2014 tables):
| Ranking | 2014 | ||
| 1. | ↑ | University of St Andrews | (24th) |
| 2. | ↑ | Imperial College London | (3rd) |
| 3. | ↑ | University of Oxford | (-) |
| 4. | ↑ | University of Cambridge | (5th) |
| 5. | ↑ | University of Birmingham | (8th) |
| 6. | ↑ | University of Edinburgh | (22nd) |
| 7. | ↑ | UCL | (9th) |
| 8. | ↓ | University of Southampton | (5th) |
| 9. | ↑ | University of Surrey | (17th) |
| 10. | ↓ | University of Bristol | (4th) |
| (full table,methodology) | |||
And the rankings for Welsh institutions:
| Ranking | 2014 | ||
| 27. | ↑ | Cardiff University | (28th) |
| 54. | ↓ | Swansea University | (29th) |
| 74. | ↓ | Aberystwyth University | (58th) |
| 84. | ↑ | Glyndŵr University | (99th) |
| 89. | ↑ | University of South Wales | (-) |
| 92. | ↓ | Cardiff Metropolitan University | (88th) |
| 94. | ↓ | Bangor University | (73rd) |
(N.B. no data was available for the University of Wales Trinity Saint David)
Digital, Data & Policy 
This data doesn’t actually match the table: http://www.theguardian.com/education/ng-interactive/2014/jun/03/university-guide-2015-league-table-for-computer-science-and-information-systems
Fixed — thanks Nick!