Sentiment for Amazon (AMZN) has improved, says Likefolio's Megan Brantley, who points out rising trends in the ecommerce giant. The company's October Prime Days offered a leg up for Amazon and its customers a chance to get ahead on the holiday shopping season. However, Megan sees AWS cloud being Amazon's leading growth driver. As she points out, AWS remains the cloud leader, but its dominance is shrinking as competitors like Microsoft's (MSFT) Azure gains traction.