Question:
I am Tovah and Purplebird - like and light scents are wasting money for me. I have to wear heavy orientals or white heady flowers to be able to smell scent at least two hours after application. Light skin tone and golden brown hair, green-hazelnut eyes. Rapid metabolism, fiery Gemini constantly moving. Much sugar consumption. Skin is not so dry but not oily - rather normal and ehm - ageing. :-)
Maybe we can make some conclusions after a few contributions here, or the statistics.

Answer:
A really interesting subject! It would be so fun if it turns out possible to say something about bodytypes and skinchemistry!! I am the first one tall and with almost oily skin who is writing, I think.
I am tall (178 cm), slim, fair-skined, my hair is medium blond and my eyes are greyish blue. My colours are neutrale. My skin, who is ageing, is finaly almost normal. It has been oily.
On me perfumes turns sweet and vanillic, if it has the possibiliy. There are quite many frags I don´t wear, as they just becomes boring on my skin. Hypnotic Poison, for example, is nothing but vanilla on me...
I do think perfumes stays quite long time on my skin. I can wear light perfumes, but I do prefer a little substans in what I wear, so I don´t own any really light perfume.

Answer:
This is very interesting!
I always thought it had only to do with my dry skin, but for posterity, here is my phenotype:
I am 5'7", light brown haired, blue eyed (well, sometimes gray or green), with a rather large physique. I'm not saying I'm porky. No, not that. Just curvy and also muscular. I'm about 160 lbs right now, but I'm also 4.5 months pregnant. My usual body weight is around 150 lbs, but when I'm on birth control pills, regardless of the brand, it can be quite a bit higher. My skin, as I said, is dry, and very, very light. I have the Irish complexion, without the freckles. I suppose I have more of the Irish complexion you would find on a black-haired Irish girl, with some yellow undertones, I mean. My metabolism is sluggish. That runs in the family.
And here it is... most perfumes disappear rapidly on me, within about an hour or two. However, the ones that stay have woody base notes, and those always become highly vanilliac on me. Take Dune by Dior. Most women can't wear it for fear of smelling just like a man. On me, though it is pleasant and sweet, and will even last through a shower. Incidentally, the only other frag I've had that can last through a shower is Dior Addict. Everything else disappears, incl., but not limited to florals, fruity, green, fresh, citrus, etc. An exception is Bvlgari Extreme, which, with careful application, will last well into the night. But I can't wear anything that is specifically geared towards being sweet, or it will become like frosting on me. No Angel, no Britney Spears, no straight-up Vanillas.
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Actually, my body looks a lot like the girl in my avatar; thus my choice of it!

Answer:
I am short and slender (but not bony) with dark hair and eyes. I have freckles and light to medium skin. I have dry skin. I'm not sure what this means about the fragrances I can wear but I think that what I chose to wear has more to do with if it makes me nauseous or not.
I found that in the past few years I have become more sensitive to scents. So while I could once wear scents like Samsara, I am now too sensitive to the scent to wear it most of the time. It really does make me queasy. I still like smelling it on other people and wearing it occasionally.
In terms of body chemistry, I like the smell of chypres but most of them smell bitter on my skin. I also can not wear fruity scents (such as Miss Dior Cherie) because they smell ~disgusting~ after about ten minutes on my skin. I have an extremely difficult chemistry - this is another reason why my wardrobe is so small.

Answer:
Originally Posted by Wearw This is very interesting. I'm quite small, have neutral undertones, brown hair with a red tinge and very fair skin that's also quite dry.
Many perfumes become too sweet on my skin, it's amost as if my skin has a vanilla tone in it to begin with. The same perfume applied to my arm and to my mums arm, will always become very sweet and vanilla on me, and much more flowery or fruity (and better) on my mother for example. I'm the same as you with the small build, brown hair with red tinge and very fair dry skin. I find most of the 'light' perfumes just vanish on me, and I've been wearing NR For Her EDT today and I've had to spray it on twice, and it's gone now. I have to wear EDP for longevity, or oil-based perfumes. The ones that last the best on me are strong perfumes, like White Linen and JPG Classique. I think White Linen wins the prize for longevity out of all my perfumes actually.
I like to get 'value' out of my perfumes, so I tend to go for high concentrations, or perfumes with a huge sillage/longevity factor. Estee Lauder Beautiful was the only perfume I wore for several years, then I moved on to Amarige and wore that exclusively. These days, I'm more adventurous, but if a sampled perfume vanishes within half an hour or so of testing, I just don't bother. I have a tendency to turn some really good perfumes powdery. I'm having that problem with Mitsouko at the moment. I love it, but it goes 'old lady powdery' on me after a while. Very disappointing.
Clemmie

Answer:
I'm asian. At 5'5", I'm medium height for a westerner, but tall for an asian, fine boned and with a slender build. I'm older now and have normal to combination skin. In my younger days, I used to have really oily skin and had an acne problem.
I have a relatively quick metabolism, but I do not sweat very much. I know this, as I tend to overheat when I exercise rather than perspire which can cool me down. When I do perspire, watch out, fragrances really intensifies quickly.
I find that most fragrances (except for SL and guerlains) do not turn/evolve on me, in that the scent is fairly true to the notes. Also, fragrances do last on me, most EDTs will last 4 to 6 hours, EDPs will last a working day and pure parfums can go over 12 hours. I can wear most types of fragrances well, but somehow the florals, spicy orientals, complex floriorientals, woody, ambers and musks are best. I can't do heavy fruity and tropical fruity scents as most times they somehow smell cheap and trashy on me. However I can wear variations of citrus like neroli, lemon, orange and bergamot well.
I apply lightly, so unless the fragrance is really heavy (like Giorgio ), they are never really cloying on me.
I quite agree with Arhianrad, in that I think skin type, rather than colouring is a better expression of chemistry. I also think diet may also have an effect on how a fragrance projects. I find that if I had spicy food the night before, then the fragrance the next day is somewhat "different" than usual -- not different in a bad way, but different as in some notes can be more pronounced.
Wish I have the time to research and analyze this more as it is a fascinating topic. In fact, I think the perfume houses probably have all sorts of research reports on this.