The winner of VIBE's Greatest Hip-Hop Producer Of All-Time Tournament, Dr. Dre has seen much sonic evolution over the years. But just when were the Doc's beats most bangin'? VIBE's resident jockey DJ Sweetz diced up some of the producer's finest cuts from four quarters of his career—N.W.A. era (1986-1991), Death Row (1991-1996), Early Aftermath (1997-2004) and Modern-Day Dre (2005-2010). When was Dre at his producing peak? Take to the tracks and vote below.