Which is the best laser method that gets rid of deep acne scarring?

Depends: Certainly the type of acne scarring you have would direct one toward a certain type of laser. Non-ablative lasers (that don't remove skin layers) are useful for some types of scarring while ablative lasers (that remove skin layers) are better for thicker scars. A dermatologist or plastic surgeon can help you determine the best laser option for you.