The canucks also suck as a team and only have one line. The Flyers are likely not a good team...but I honestly think they are better than the canucks. They score more. Let in Less. Take more shots. Give up less shots. Have the better PP. The only thing the canucks through 20 games have on the Flyers is PK...but both of those are bottom half of the league.
In the end they are for all intents and purposes equal teams as the differences in the above are not huge. I think the Flyers have the better offense and that will carry them through.