2. Bryce Harper – Washington Nationals (23)
Prior to the 2015 season, Bryce Harper had already been named the National League Rookie of the Year in 2012, as well as an All-Star in both 2012 and 2013. In 2015 Harper had his breakout year, posting career highs in home runs (42), RBIs (99), hits (172), runs (118), and walks (124). Career highs across the board, including his .330 batting average, propelled Harper to another All-Star Game appearance, as well as being named the National League Most Valuable Player for 2015.