As most of us have realized, the word "sport" (or lack of it) on the label does not indicate whether something is a true sport scent. I love Lanvin L'homme Sport, but with its heavy patchouli base I do not consider it to be a sport fragrance.
For me, it has to be something I would wear to the gym or for other sports activities like tennis or golf. The exception is water sports or the beach when I always reach for an aquatic.
I live a pretty active lifestyle, and the right scent at the right time is key. I need a sport frag to do two things: It absolutely must smell great when mixed with sweat! And it has to work in close quarters in a public setting, so that people don't find it offensive. Not a lot of fragrances can pass my two-pronged "hot and sticky situation" test. Here are some that do:
Polo Sport - A gold standard. The current version is just light enough, and can still be used for workouts at the gym IF you go easy on the trigger.
Polo Explorer - Outdoors only, say hiking during the cooler days of fall. They got the name right.
Chanel Allure Sport Cologne - Among the most versatile of the genre, appropriate just about any time.
Jean Paul Gaultier Monsieur - Similar to Mugler Cologne, but smells much more natural. My summer gym favorite. Impossible to over apply.
Body Shop White Musk Sport - My winter favorite, and a babe magnet at the gym!
Royall Rugby (available at Brooks Brothers) - Great for a wide range outdoor team sports, from weekend soccer to softball beer league.