KANSAS CITY, MO - JUNE 05: Eric Hosmer #35 and Mike Moustakas #8 of the Kansas City Royals celebrate after the Royals defeated the Minnesota Twins 1-0 to win the game on June 5, 2012 at Kauffman Stadium in Kansas City, Missouri. (Photo by Jamie Squire/Getty Images)
Just a simple comparison for reference, here is the age and how each of the 3 young hitters has produced in the minors.
Myers and Hosmer seem to be on similar time tables. Moose was about a year behind the other two.