What makes the prettiest scars-- stitches, glue or staples?

Glue or steristrips: The key to making the most invisible scars is lack of tension on the incision. This is accomplished by placing multiple deep sutures. The closure of the skin is best done with glue or steristrips. This will eliminate any scarring from sutures or staples.

Pretty scar: Scars are not pretty but, can be fine lines and acceptable. I don't like or use staples. They leave mor of obvious scars.