Gents - I must have something which smells spectacularly good; for the odd, exquisite, occasion. I've heard that Carolina Herrera and Bleu de Chanel are /very/ complimented fragrances. They are both, of course, expensive: so are they worth it?
An excellent choice, in my view.
No experience with CH fragrances, although I do own BdC which I happen to be wearing today. I enjoy BdC. It's a good, versatile fragrance which suits just about any occasion and any weather.
Sartorial is one of my absolute favs. I'm never thrilled with its performance, but I tend to be a conservative sprayer (1-3 sprays with most fragrances). With Sartorial I use 4-6 sprays and always make sure my chest sprays make contact with my undershirt as this extends longevity for me. Sartorial may be the classiest fragrance I've ever smelled. Hope you enjoy it as much as I do.
Also, a question for you sir: do you get a sense of "chalk" when you smell Sartorial? I absolutely do, and I am very impressed with how they pulled that off.
I think what you really should look into is Scent Story 24 Gold. It's reasonably priced, long lasting and gets tons of compliments.