My favourite is Dalissime, a nice light scent for day time use. Floral but not too 'flowery' if you know what I mean.
I wear Opium, by YSL. Incidentally, it doesn't smell like opium, it smells like vanilla and flowers. When I have the extra money, I like to also buy the body lotion.
I wore Charlie in high school, Chloe and Pavlova in college, and Obsession as a young adult.