Machinehead
GoAwayTrouba
A defenseman that can anchor a top pairing without the help of a top pairing partner.
This is also true, but it depends.
If your partner is Girardi, MacDonald, or Sbisa, it doesn't matter how good you are.
McDonagh is a #1D and he has the analytics to prove it this year, but that was never going to happen the last 3-4 years.