He's no better than #3 LT in the AFCE.
Hell, just a quick look at the AFC in general:
Thomas
Clady
Long
Gaither
Oher
Light
Roos
Every one of those is better than D'Bust. McNeil may be better, depending upon the season. Vollmer may be better.
But the Jets just gave him an extension as if he's an elite LT. Good work!
No, they're absolutely not. Light isn't even close. Neither is Oher, or Roos. Nor is Gaither. Thomas is, and Clady is in the conversation. Long is a better run blocker but not as good at pass pro as Ferguson.