This is a compilation of the 25 best skylines in the world as of January 2012.  The skylines were ranked by assigning one point per floor of the skyscrapers (taller than 6 floors) in each city.

#1 Hong Kong

Population: 6,943,600

Area: 1,053 km²

Buildings: 7,685

#2 New York

Population: 8,391,881

Area: 800 km²

Buildings: 5,919

#3 Chicago

Population: 2,853,114

Area: 589 km²

Buildings: 1,124

#4 Singapore

Population: 4,351,400

Area: 710 km²

Buildings: 4,366

#5 São Paulo

Population: 10,990,249

Area: 1,523 km²

Buildings: 5,667

#6 Seoul

Population: 10,331,244

Area: 616 km²

Buildings: 2,877

#7 Dubai

Population: 1,954,000

Area: 3,885 km²

Buildings: 564

#8 Shanghai

Population: 9,145,711

Area: 6,639 km²

Buildings: 990

#9 Bangkok

Population: 7,587,882

Area: 1,569 km²

Buildings: 786

#10 Tokyo

Population: 8,653,000

Area: 621 km²

Buildings: 2,702

#11 Guangzhou, China

Population: 6,560,500

Area: 7,434 km²

Buildings: 503

#12 Moscow

Population: 10,443,000

Area: 1,081 km²

Buildings: 3,267

#13 Toronto

Population: 2,503,281

Area: 630 km²

Buildings: 1,849

#14 Chongqing, China

Population: 6,300,000

Area: 82,403 km²

Buildings: 538

#15 Shenzhen, China

Population: 1,245,000

Area: 2,020 km²

Buildings: 357

#16 Kuala Lumpur

Population: 1,800,674

Area: 244 km²

Buildings: 548

#17 Beijing

Population: 7,746,519

Area: 16,808 km²

Buildings: 899

#18 Rio de Janeiro

Population: 6,093,472

Area: 1,182 km²

Buildings: 2,564

#19 Mumbai

Population: 11,914,398

Area: 621 km²

Buildings: 1,216

#20 Macao, China

Population: 453,733

Area: 21 km²

Buildings: 564

#21 Osaka

Population: 2,598,589

Area: 220 km²

Buildings: 1,463

#22 Jakarta

Population: 9,341,400

Area: 661 km²

Buildings: 388

Population: 2,965,403

Area: 200 km²

Buildings: 1,709

#24 Recife, Brazil

Population: 1,533,580

Area: 217 km²

Buildings: 1,104

#25 Miami

Population: 413,201

Area: 92 km²

Buildings: 296