John Sickels is now done with all of his rankings.I have updated the values through his most recent "Important Grade Changes" post, as well as included the prospects from the Cubs/Rays trade.

How I went about creating the data

I went through each system that John graded and took down the grade for both hitters and pitchers. Why did I do that? Well, hitters and pitchers have different values. The value’s that I used were the ones first identified by Victor Wang in an article at The Hardball Times. The guys at Beyond The Box Score took that and made it into a monetary value. Here is what the average prospect was worth who fell in these ranges:

Now I did have to make some adjustments. As we can see, Pitching prospects in the 11-50 range tend to be more valuable than those in the Top 10. Since that doesn’t actually make much sense, I made every pitcher graded as a B+ or better worth the same "average" value of 14.2M.

For the C+ guys I had to change a little. I didn’t go through the 268 players who were graded C+ to find the age. So what I did was take the average C grade (split the difference between the two grades). That made 1.6 for pitchers and 0.54 for hitters.I used the weighting for the B grade prospects to wind up with the C+ being worth the same for a C as the B+ was for the B grades. Now that we had the value for each type of prospect, I just ran the numbers for the different teams. One thing to note, I didn’t include the grade C prospects because not all of the C prospects made each list, so the data was left out because it was incomplete.

Here are the results:

Here is a representation of how each team’s overall value broke down by Pitchers and Hitters value:

Does this align with your personal farm system rankings? Discuss.