I feel like this is perhaps the most important topic ever! And we haven't discussed it! I love the Old Spice commercials:
I love them even more because I have been a devout Old Spice user for the past....I dunno, 10 years? I perspire a lot...I know, gross. So back in the day I did the ring around with every deodorant, looking for one that turned my sweat into the sweet smell of awesome. And then I found Old Spice, and my life changed forever. I was done with Adidas or Gillette. I now rely on Old Spice Arctic Force to make me smell like awesome.
I also find that Axe is great to cover the smell of marijuana and farts, or to use against your enemies to make them smell like cheap Jersey Shore hooker.