Nashville is a better team overall, even if McKinnon is currently one of the best players in the world. I call a sweep here, with the Preds winning then obviously.
In the playoffs all the top teams are capable of shutting down any single line forcing the other lines to have to step up and I'm not sure the Avs have the depth to be able to pull that off. If Nate plays out of his mind we may see him get a PPG but I don't think he'll be able to take over too much.