Depends on budget and what you're after and what compliments you.
My everyday perfume is from The Body Shop, costs £15 for 50ml and is called Love Etc. My going out perfume is Christian Dior Pure Poison, costs £66 for 50ml (Debenhams). My special occasion perfume is Christian Dior Miss Dior, also costs £66 for 50ml (Debenhams).