Stimpy
What I had in mind in the original post was not which city one hated so much as liked the least. I don't find Sydney interesting but I don't actually hate it.
As for people I didn't have them in mind as most places you go people are friendly. I was thinking more of the general atmosphere of a city. For example I like Auckland because it's sunny, clean and has lots of fresh air. It's in a pretty locations also. I like Hong Kong because it is one of the most interesting cities you can ever visit. It has interesting attractions to visit, good, quick tailors, nice islands etc
You will note that I limited my original post to cities people have actually visited
rather than their perceptions of cities. This was so that people could actually give an informed opinion on a given place.
cheers Peter