Personally, I think most men's colognes smell like industrial-strength chemicals. Or they smell soapy. I also think that most men who wear cologne either use too much, or have picked a fragrance that doesn't work on them--both of which are worse than no cologne at all.
Nevertheless, every now and then I'll meet a guy who smells intoxicating. But I'm not the kind of guy who will ask a stranger what cologne he's wearing, and I figure it wouldn't work on me anyway.
Back in the early-mid 90s I went in search of a "signature scent" but didn't have much luck finding anything that worked with my body chemistry.
I also experimented with aromatherapy in the 90s. I wasn't very good at blending scents, so I don't attempt it very often, but I did find a couple of blends that work fairly well on me, and which seem to have the desired effect on people. Below are a few recipes (add to 1/8 cup of base oil). Anything marked as "optional" is my modification to the recipe I started with.
Aphrodite Oil
5 drops Cypress
2 drops Cinnamon
5 drops Orris root
Venus Oil
3 drops Ylang-Ylang
2 drops Geranium
1 drop Cardamon
1 drop Camomile
2 drops Lilac (optional)
4-5 drops Orris root (optional)
4 drops Ginger (optional)
Taurus Oil
4 drops Oakmoss (I increased this considerably, up to 24 drops.)
2 drops Cardamon
1 drop Ylang-Ylang (I increased this to 6-8 drops.)
2 drops Patchouli (optional)
3 drops Lilac (optional)
I also made a really nice "Lavender Spice" oil, but I neglected to write down the recipe. I believe I used some combination of lavender, cinnamon, clove, and possibly black pepper and/or ginger.
I apply the oils to my wrists, inner elbow, the notch below the Adam's apple, the nape of the neck, and the notch below the sternum. In general, cologne's are best applied to the pulse points and anywhere along the midline.
http://www.projectfreedom.us/PulsePoints/PulsePointMale.jpg