As someone says above, Black is very rubbery and smokey. To my nose, this "rubberiness" reminds me of Dzing! (L'Artisan), though some Dzing!-lovers may disagree. Pour Homme is a very fresh and yet interestingly sensual fragrance of darjeeling tea, lily, pepper and musk. It's pretty much unisex and in my country (Japan), it's been No.1 on the "most common mens fragrance used by women" chart last 8 years. It's been one of my signature daytime colognes also (besides Tam Dao), and I've been consuming Pour Homme almost a bottle every couple of months. Extreme Pour Homme has a prominent coriander+petitgrain top and it's more peppery, greener (green tea?) and spicey in the middle, though the drydown is the same transparent musk. By the way, Blu Pour Homme is a completely different fragrance. It does not smell oceanic as the same "blu" infers. To my nose, it's woody musk covered with ginger. Speaking of aqua, Aqua Pour Homme is literally aquatic masculine and to my nose, it smells almost identical to Givenchy pour Homme Blue Label.