Lol every year these rankings get more and more peculiar. They are completely inconsistent across the board, and to be honest The Times/Sunday Times + world rankings are about all I think are reliable (given that rankings don't seem to change as dramatically every year). The Guardian is the most bizarre and The Complete University Guide is a close second - how can universities move 6-8 places every year? And how is LSE better than Oxford? As strong as it is I doubt anyone could disagree that Oxford and Cambridge still hold the crowns for best universities in the UK.
I also find it odd that despite all the new investment, excellent world rankings, and new membership of the Russell Group that Queen Mary has dropped 6 places in a year that has been marked by success. It has also just built the new ArtsTwo building and yet the History ranking also fell several places. I just find it a bit strange personally.