The best-selling men's cologne as of 2015 is Acqua Di Gio by Giorgio Armani, according to Perfume.com and Amazon.com. Perfume.com also lists Eternity by Calvin Klein and Cool Water by Davidoff as best-selling colognes.
Acqua Di Gio by Giorgio Armani has a light aroma that is a mixture of coriander, freesia and cyclamen. It also incorporates hints of rosemary, persimmon, jasmine petal, bergamot and Indonesian patchouli. This cologne was first introduced in 1966 and has been a best seller ever since.
Amazon.com lists Seductive by Guess and Curve by Liz Claiborne for Men as additional best-selling colognes. The strongest notes in Seductive are cardamom milk, mandarin pulp and pink pepper.