The 6-foot-8 Warren, who led the league in scoring at 24.8 points per game, received 48 votes. Parker was second with 25. He was voted the league's freshman of the year.
Warren finished the regular season with back-to-back performances of more than 40 points. He had 41 in a win against Pittsburgh and 42 in a victory over Boston College. He also leads the league in field goal percentage and averages 7.1 rebounds per game.
NC State is 19-12 and 9-9 in league play and likely headed to the NIT unless it wins the ACC tournament.
Parker is averaging 19.2 points and nine rebounds for Duke, which finished the regular season 24-7 and 13-5 in the ACC.