With the 2012-13 season at the halfway mark, SI.com's NBA writers make their picks for the league's top performers. The MVP and Coach of the Year races have produced the most disagreement at the top, while clear favorites have emerged for Rookie of the Year, Sixth Man Award, Defensive Player of the Year and Most Improved Player. Read on for all of the selections. (All stats and records are through Jan. 22.)

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