Arenado broke out in 2015 and rode his sweet swing to a National League-leading 42 home runs and 130 RBI and his first All-Star appearance. And although Arenado was a far superior overall hitter at Coors Field (.960 OPS compared to .835 on the road), he actually hit 22 of his 42 home runs on the road. Additionally, he is an impatient hitter, and his aggressiveness was particularly exploited on the road (.296 OBP). However, his combination of good contact skills, big-time power and 81 games per year at Coors Field make him a surefire first-round pick in drafts this year. Arenado has also steadily increased his flyball rate every year in the majors — a key factor in his power explosion. Only four third basemen hit 30 home runs in 2015 and only three managed 100 RBI, so even if Arenado cannot match last year's breakout performance, he will finish high on the leaderboards.

A broken finger and bout with pneumonia may have limited Arenado to 111 games in 2014, but it didn't prevent him from surpassing the production from his rookie season in nearly every meaningful category. In addition to the defensive wizardry that earned him his second Gold Glove, Arenado noticed a 122-point rise in OPS while also upping his walk rate and trimming his strikeout rate from a season earlier. As is typical for most Rockies batters, Arenado did the bulk of his damage at Coors Field, where he slashed .303/.344/.584 and swatted 16 of his 18 home runs. Those skewed splits figure to persist throughout his career, but given his pedigree as a former top hitting prospect, the still-developing Arenado should see continued improvement in both his plate discipline and road performance as he enters his age-24 season. Those expected developments -- along with some better luck on the health front -- would surely lead to another jump in his counting stats, perhaps vaulting Arenado into the top tier of fantasy third basemen in 2015.

Arenado got the call to the big leagues in late April and never looked back, holding down the everyday job at third base while delivering a sterling 2.7 WAR mark. Much of that value derived from his defense, as Arenado disputed earlier scouting reports suggesting he was slow-footed by finishing second among NL third basemen in UZR and accruing a number of highlight-reel plays on his way to a Gold Glove Award. Arenado’s work in the batter’s box wasn’t quite as sublime as his play in the field, but the 22-year-old acquitted himself well with a .267/.301/.405 line. Prior to reaching the majors, Arenado was universally recognized as one of the best hitting prospects in all of baseball, making further improvement from last season’s offensive marks a relatively safe assumption. As he matures, Arenado figures to add further power, while the hitting environment of Coors Field should allow him to maintain a consistently high batting average. A breakout might not fully metastasize next season, but Arenado should at least get things trending in that direction.

Arenado did not have the smashing success most projected for him in 2012 after he entered spring training fresh off earning Arizona Fall League MVP honors. While the .285/.337/.428 line he delivered at Double-A was nothing to scoff at, he mustered just 12 home runs in 516 at-bats, leaving some questions about his long-term viability as a power bat. Still, Arenado is just 21 years old and already boasts elite plate discipline and contact skills while markedly improving his defense at third base, allaying concerns that he would eventually need to move to first base. Arenado will likely open the season at Triple-A Colorado Springs, and if he continues to demonstrate that he can get on base at a high clip and hit for extra bases, he should get some run with the Rockies later in 2013.

Arenado capped off an impressive age-20 season in the California League by earning MVP honors in the Arizona Fall League. A good defender at a premium position, the right-handed hitting third baseman could fill an immediate need for the Rockies before the end of 2012. Keep in mind, however, that he'll almost certainly open the year at Double-A Tulsa and spend another half season of development in the minors before a promotion to Colorado is considered. While both of his 2011 stops were hitter-friendly environments, his power and contact skills (88 percent in the AFL, 90 percent at High-A) project him as a middle-of-the-order bat and potential star soon after his big league arrival.

Arenado, Colorado's second round pick in 2009, had a strong season at Low-A Asheville with 12 home runs and a .858 OPS. His 41 doubles will likely turn into more home runs as he grows. He doesn't walk much, but it's somewhat offset by his lack of strikeouts. A strong season at High-A could put him on the fast track to the majors.