Actually, the 'rankings' in the original question were not referred to with a view to asking us about them,
The student clearly has seen the rankings and is not actually asking us about them, but rather is asking us about our 'opinions' and the 'environment' in each city. The 'rankings' are not material to answering such questions, or, alternatively, do not constitute the best way of answering this question. That was the point I have been trying to make by shying away from a discussion of rankings.
Your little 'go off and write a thesis' quip, that's actually quite amusing and I'll award a smilie face for your effort:
. But apart from that, I'm drawing a line
-----------------------------------------------------------------------
and will refuse to comment any further on this thread.
Have a fun summer,