Best Longevity? Black Aoud and Red Aoud tied.
Worst Longevity? Yohji Homme
Most Projection? Black Aoud and Red Aoud tied.
Least Projection? Yohji Homme, Bvlgari Pour Homme and Idole tied
Most Versatile? Black Aoud.
Hardest To Wear? The ones I am currently trying to offload, and those I rate below 3 stars. They don't necessarily have to be challenging scents. If something smells mediocre, or steers away from my preferences, I'll naturally find it hard to want to wear them.
Most Synthetic Smelling? I've smelled a handful, but I only own a decant of Skai.
Most Natural Smelling? In this context, would "Natural" also mean "realistic"? Anyways, by my own terms and definitions, it has to be Chene (wood) .
Most Chemical Smelling? I'll get back to this in a while.... Edit: Aigner X-limited - chemical, sugared water.