Apple's flagship iPhone 5S outsold the less-expensive iPhone 5C by at least 3 to 1 in the U.S. over the opening weekend, a mobile analytics company claimed Monday.Wall Street and industry analysts said that the ratio was probably even more in the iPhone 5S' favor.According to Boston-based Localytics, a mobile and Web app marketing and analytics platform, the pricier iPhone 5S outsold the iPhone 5C by a factor of 3.4 to 1 in the U.S. Globally, the flagship outsold the iPhone 5C by a slightly wider margin of 3.7 to 1.Localytics measured the ratio by mining data it received from clients' apps installed on approximately 20 million iPhones from Friday, Sept. 20 through Sunday, Sept. 22."Early adopters are favoring the high-end 5S compared to the 5C," said the company on its blog Monday. "This makes sense since those who feel the need to buy a new device th
