No. 3, Best Buy: The No. 1 CE chain readily admits it dropped the ball on e-commerce, making it one of CEO Hubert Joly’s first orders of business to get the digital house in order. Our Take: The investments in web design, fulfillment and back-office systems have paid off in a smoother, more functional and far less frustrating online experience, which has helped raise digital’s share to 10 percent of total revenues.