Diversity yes. But best univeristy . hmm well i am not so sure about that. Best universities can be the topic of discussion. I was going through the times ratings of electronic engineering top 50 . i found 26 universities of usa compared to 8 of UK. Well that may seem USA has more univeristies but then we should not forget USA has universities almost 20 times more than UK. US has alltoghether 4,200 accreditated universities l US has good univerisites but plenty of bad ones and more unaccreditated universities. At least UK doesnot as such variations and there is not much difference between univerisites. Although i dont want to start another discussion with that. But even in diversity london is considred one of the most diversified city in the whole world. Whoever doesnot believe come and see for themselves.