It's true, Donald would be a special player on any defense.
That said, I think you are short-changing the impact his linemates have on his success.
Let's not forget how incredibly dominant Quinn was in 2013.
I remember. He was phenomenal.
If Quinn had played at that same level all of last season, I think the conversation about who is the most talented would be a lot different than it has been lately.
Brockers does make Donald better because he does his dirty job so well that Coach Williams is able to cut 99 loose and let him freelance.
The same can be said about Chris Long too.
AD99 is a star, even on a bad line, but his star wouldn't shine so bright without the badass guys around him now.
I know you know all this, and I get where you're coming from.
I just tend to think that the rest of our line deserves it's fair share of the love.