Love the way people parrot thoughtlessly, now what we could justly call a maxim, that "everyone should consider university rankings with a pinch of salt as they are subjective". Excuse me, dear future law students, who should be able to use their logic extensively, how in the first place did you get your subjective overall concept of the line-up of the best universities, in any subject? Out of the blue? No. You either have heard what others say what they think the ranking should look like or you have personally formed your opinion on the basis of numerous rankings. Yet, how did those from whom you heard of it get their idea from? Obviously, random rankings! The logic of this concept is undeniable. And, pardon me, if you think otherwise, I am not sure you even deserve to do law in the first place. The extent, to which some people are ridiculously brainless, amuses me and other people with common sense that see your posts.
To think about the quality of anything, you have got to be provided with material evidence, the essence of any reasonable opinion. That is what most of the university rankings plan to do, and finally do. Obviously, rankings change from year to year. But those changes are not very drastic, as well, which again proves the legitimiacy of most of the rankings.
Apart from rankings, the best thing to do is also to get a second-hand opinion, possibly from the wide rande of academics. Moreover, it is useful to visit the universities you shortlisted yourself. That's the best possible thing one can do.
While being interviewed at one of the Oxford colleges, I was told that the most appropriate way to deal with your future plans is to 1) check the academic rankings of universities for the past few years, 2) ask those who graduated from them or other universities you are interested in what they think about them, 3) finally visit each of the universities for yourself. Sounds reasonable, and so all of you should do.
Any academic ranking is supposed to give you a general view on each of the universities and their approximate positions within a given country, or internationally. Of course it is subjective, but in order to decrease the level of subjectivity, you follow the steps 2) and 3), and additionally compare various rankings.
That is why I, finally, decided to choose Queen Mary instead of King's as my insurance choice once my interview at Oxford did not go well for me. And that is what happened to me. I, personally, checked UCL, KCL and QM. I ticked out UCL: I visited it and simply did not like it. KCL was tremendous, so was QM. Finally, I decided to pick QM. Now, I cannot say I regret that. I am even happier with any ranking coming through, which affirms me in the belief that I made a right choice.
That is all I can tell you. Please, do not underestimate the legitimacy of either academic rankings, academic opinion, or personal experience. Each one of these elements is equally important.
With kindest regards