It’s always difficult to judge which and who had the best MLB draft picks, but FanGraphs’ KATOH has always been a pretty good resource. For those unfamiliar, Chris Mitchell, came up with the methodology and wrote about it over at The Hardball Times a few years ago.
First, high school players are left out as simply it’d be difficult to judge their development. So, looking first at OF Corey Ray, the Milwaukee Brewers #5 draft pick, KATOH projects he’ll have a 1.2 WAR by the age of 27. Not all that impressive, but Mitchell makes sure to tell readers they will be low and use the numbers to compare them to others.