the boxscores are tiebreakers for me, but they seen to be pretty meaningless. Last year i got an Player who scores are lot, and hit alots of three but his JR ain't that good.
The main thing you should at is the grade of the player i my opion, when you comparing players with the same grade the potential and the age become quite important. I think the age is more important, but extrrem potential players could change it i rate an 19J 5 grade player with 5 potential at top, and i will rate an 1 potential 18 year old at the botton at the 5 grade players but betwenn 2-4 Stars potential i would go for age.