Surprised so many people are afraid to play the Blues. I think the Canucks are stronger at every position....
Schneider > Every St. Louis goaltender: Both Halak & Elliot have been extremely inconsistent this season. Is anyone afraid of meeting Jake Allen in the first round? It doesn't matter who they go with in net, Canucks have a definite advantage.
Canucks D > St. Louis D - Both teams have structured their defensive core in a pretty similar way, and both teams have lots of depth. That being said, in a seven game series, I would still take the playoff experience of the Canucks D-core. It's pretty close though.
Canucks forwards > Blues forwards - The Canucks have five forwards with 10 or more goals this season, the Blues have two. Sure the Blues have guys like Backes and Stewart that are built for the post season, but they also have a bunch of soft forwards (Oshie, Perron, McDonald, Berglund, Tarasenko) that the Canucks could grind down over a 7 game series.
I'd prefer to see the Canucks draw the Wild or Sharks in the first round, but I definitely don't think the Canucks should fear a first round matchup with the Blues.