A studio photo session recently done using beauty dish (with grid), octabox and a kicker / hair light. One gets two distinct different lighting effects. I love the soft wrap around light when using the octabox. I fell in love with the Octa when I studied the work of Annie Leibowitz.
The grid on the beauty dish has its special effect. Without any modifiers it can be a pretty hard light and is often used as a rim light. The grid concentrates the light to a specific area and creates harder shadows. It was also feathered to reduce some harshness.
In all the images I used a kicker / hair light to add some dimension to the images.