Here is the list so far of peak score. It's a simple formula. Take the QB's passer rating for that year, subtract it from league average, multiply by 0.1.
@BaconGrundleCandy This is more of a general gauge of how great each guy was at his peak, even if that was for one season. I'm not really going for a deep dive here about what was actually the best season, how we value things like interceptions, sacks, rushing yards, etc. I'd be interested in getting some more advanced stats/metrics for QBs, as I realize that passer rating is a simple, formula with big assumptions and pretty big flaws, though I've found it's easier to find and compare, and that it does a good job of ballparking these things. I'm definitely open to more metrics, though.
I'm sure that, for example, you could argue Manning at 3.83 wasn't better than Brady at 3.46, but I think you'd be hard pressed to find an argument when two players are separated by an entire point.
Mahomes is at #42 and Jackson at #32; shows how much recency bias and inflated passing stats miss historical context.
While I like that we can see some awesomeness near the top of the list, what's interesting to me is when you start getting into the 30s and below on the list; the peak rating may be a lot more useful in boosing their points, so we can certainly account for Matt Ryan's peak season over Philip Rivers's peak season, and we can move Bert Jones up the list; I think that's important when stacking these guys up.
For guys prior to 1967, and especially for prior to 1950, I'm using a sliding adjustment for their scores, which I'm going to get into later today and hopefully get some opinions on the idea...
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