Electronic Arts' $55 billion sale is a boon for Wall Street's biggest banks. Investment bank hiring remains spotty and selective, however, with senior bankers benefiting most. Recruiters break down the industries and jobs that are seeing the biggest hiring surge. Wall Street's M&A rebound got a boost on Monday with the biggest take-private buyout in years, but experts are warning that the hiring landscape isn't showing the same signs of revival. Video game producer Electronic Arts on Monday said i ...