Now, top (insert number here) lists are very subjective for the most part. Especially when you are dealing with players who have barely any professional experience. Trying to predict how an 18-year-old’s career is going to pan out is fool’s gold. For every Ken Griffey Jr., there is a Brien Taylor, with most top picks falling somewhere in between. The differences between these 20 players are minuscule as far as talent. They are all on the list for a reason. Any one of them could be a total bust and never make it, or he could be a Hall of Famer in 20-30 years. Without further ado, let’s dive int…