I did not want to get into this discussion due to the stupidity of the thread justifying one city supremacy over the other city because it has a couple of buildings with more floors, even though it could be an ugly residential tower built on the same platform/podium as 2 or 3 other buildings...(cough- HK)
Wikipedia-
For example, one site, which ranks Hong Kong at number one and New York City at two, notes that it included almost four times as many buildings in Hong Kong's scoring (2,939) as it did for New York (849). Had they chosen 500 feet (152 meters - or about 40 stories) as the cutoff point, New York would have had 184 buildings included, and only 116 for Hong Kong, clearly changing the results. To further complicate matters, many Hong Kong skyscrapers have a common base or podium of several stories that then split into separate towers. If one counts each separate tower column as a separate skyscraper like Emporis does, the count changes again for Hong Kong only, rising to 186
http://en.wikipedia.org/wiki/Skyline
I found this site which was last updated on 11/11/06-
http://www.thehighrisepages.de/wlhdbstd.htm
Buildings over 492ft (completed)
Rank Points City
Buildings
1 6381 New York
178
2 3793 Hong Kong
76
3 3147 Chicago
78
4 2135 Shanghai
51
5 1837 Tokio/Tokyo
59
6 1446 Houston
27
7 1336 Shenzhen
28
8 1152 Singapur/Singapore
26
9 1103 Kuala Lumpur
23
10 1065 Los Angeles
23
11 869 Seoul
17
12 799 Dallas
16
13 765 Atlanta
12
14 764 Bangkok
21
15 716 Dubai
11
16 653 Toronto
11
17 623 Melbourne
18
18 591 Sydney
22
19 561 Guangzhou
11
20 534 Manila (incl. Makati)
17