It is not possible to state that one breast implant model/profile is “better” than another. There are certain patients who may benefit from one style of implant as opposed to another. This determination is often made based on measurements ( dimensional planning) and the patient specific goals. In my practice, I find the use of goal pictures helpful in the communication process between patient and surgeon. This communication along with careful measurements ( often with the help of temporary sizers used during surgery) helps plastic surgeons determine what breast implant profile, style, and size will best help meet the patient's objectives. I hope this helps.
One style isn't better than the other. The style of implant you choose depends on how you are built and what your augmentation goals are. I use the style 15 for most of my primary augmentation patients. For patients looking for a more dramatic change or for patients who have had the style 15 and want to go bigger I will use the style 20.