Re: Redszone's #16 prospect - runoff style.
Vidal for me.
They were both drafted in the 8th round, Mejias-Brean is a year younger, but Vidal is THREE levels ahead of him on the minor league ladder.
Vidal also has a much longer track record as a power hitter, with 2012 being the first time Mejias-Brean has shown any power outside of batting practice.
Lastly, I am more impressed by Vidal's age 21 season (847 OPS in 127 Midwest League games) than I am with Mejias-Brean's age 21 season (925 OPS in 46 Pioneer League games).