Hedge fund managers offered up their top picks at today’s Sohn Conference held in New York. Earlier in the day, Greenlight’s David Einhorn; JANA Partners' Rosenstein; Corvex's Keith Meister, and Omega Advisors' Leon Cooperman all took the stage. Their picks included Walgreen’s Boots Alliance, YUM! Brands, and Actavis to name a few. (See our earlier