Wait, don't think that I agree with Burress getting 3-1/2 years for what he did. At best, I'd give him what Stallworth got, i.e. 30 days (while Stallworth should have gotten at least 3-1/2 years). But that's the bias in the laws. Gun crime is considered "black" crime while DUI is considered "white" crime (regardless of who commits it). It's not dissimilar to how the punishment for crack is worse than powder cocaine.
And to analogize one to the other, what happened to Lynch WRT the gun is like him getting caught DUI. Potentially harmful but wasn't (and in reality DUI is a lot more potentially harmful than having a gun, even if it's loaded, locked in a box in the trunk of your car). Burress' case was like DUI where he crashed into a pole and injured himself. Both would be misdemeanors. But since they involved guns, they're felonies (at least in Lynch's case, the DA had the good sense to knock it down to one misdemeanor, which makes it legally like a DUI).
I think Goodell got it right with Stallworth. I think the Marshall and Vick cases, when compared to Lynch's, are inexcusable.