Long-time reader Jon sent in a different view of the QB data. He uses a nifty tool in Excel to generate a parallel coordinates plot (also called profile plot) on which pairs of QBs can be highlighted and compared.
This chart exploits the foreground background concept very nicely. One way to deal with abundant data is to highlight only those bits that matter to the question at hand, and relegating the rest to the background.
The gray lines in the background provide context without grabbing undue attention. He also converted every metric to a scale between 0 and 1, similar to what we did with our version.
The Eli Manning / Philip Rivers comparison shows that both QBs were below average on most of these metrics, with Manning near the bottom of each.