Social Madness presented by Capital One Spark Business and sponsored by Xcellimark has begun and FedEx Corp. is dominating the early voting in Memphis. In the 500+ employee category, the logistics giant has opened up a massive lead over its next closest competitors, AutoZone Inc. (NYSE: AZO) and Methodist Le Bonheur Healthcare. FedEx has a total of FedEx’s (NYSE: FDX) point total, at 34,399, is among the largest in the country. Dallas-based Southwest Airlines (NYSE: LUV) currently has a larger...