Kiton Black is an unbelievable scent. I would give it the highest ratings possible, as it may be one of the only designer scents close to 'perfection'....at least since Cuiron was discontinued.
Varvatos Vintage and Porsche Design Essence are two really well made, balanced, and unique fragrances which occupy a certain space in my collection. These are wearable, easy to use, and easy to find scents which work on an everyday level. I really think scents like these two define the fact for me that NOT ALL designer fragrances are rubbish.
Eau Sauvage Fraicheur Cuir is another remarkable scent, although it's a designer limited edition---so it doesn't really qualify under the 'easy to find' category. it offers a beautiful overtone of leather on an already fantastic citrus base of Eau Sauvage. This stuff exudes class and dignity.
Paco Rabanne Pour Homme is a classic in every sense of the word. I'm out of stock for this at the moment, but will be buying another bottle soon!