Number 2: Trevor Story (15.4 fWAR, 18.6 bWAR, 4 seasons as a Rockie)
These next two guys should not be surprising if you were a Rockies fan in the last decade.
In Trevor Story‘s four seasons as a Rockie, he came in fourth in NL Rookie of the Year in 2016, when his season was cut short in August due to injury.
He struggled a bit in 2017, particularly at the plate, but his 2018 and 2019 seasons would be enough to get him to number two on this list alone.
He was an All-Star in both seasons and won Silver Slugger Awards in each season. He also came in 8th and 12th in MVP voting in the seasons. He averaged a .293/.355/.561 slash line and an OPS+ of 122 with 36 home runs and 96 RBI and he had a total of 15 DRS. He had 10.8 fWAR/11.7 bWAR in those two seasons combined.
If he signs an extension with the Rockies, stays healthy, and produces numbers as he has in the last two seasons, he will replace the guy at number one and frankly, he could find himself getting serious consideration on the Hall of Fame ballot after he retires.