NHL rookie rankings: Brock Boeser, Mathew Barzal leading the way

Brock Boeser has 18 goals this season for Vancouver and tops the December rookie rankings. Bob Frid-USA TODAY Sports

It's been a little over a month since our last rookie rankings dropped, and things have changed quite a bit. What amounted to the Clayton Keller show in the first month of the season has morphed into the Brock Boeser show more recently, with Mathew Barzal aiming for joint headliner status.