- Nolan Arenado (Colorado Rockies)
Arenado is only the first of many young stars on this list. Nolan Arenado is a tremendously talented defensive player with some serious exponential growth offensively. In his second year, he hit 8 more HR, 9 more RBI, and had a batting average that went up 20 points while playing 22 fewer games.
The top seven guys on this list are a hard group to break into, but, pending another year of growth, Arenado could be even higher next year.