Well there aren't that many unis better than it are there? The are less than 10 in the same league, e.g. lse, ox, imp, harv, yale, princeton, mit, stanford, and choosing which one is the very best is near impossible. It is, undoubtedly a world class university and probably the best in europe.
Moreover, I intend to study philosophy+history there if I get a place, and there is no university better for studying these two subjects.