Typicaly I think of WC as dog games
But with the change of playoffs who knows
I just remember it last year because it was favorite heavy
I agree with the dogs always being a good or strong play in the WC round
The teams were more even or in a tighter window of strength, usually.
Now with two more top teams added to the mix in the WC round I think it will skew a little more towards favorites winning games, as far as covering the spread this season some big lines showing the mismatches
although some teams are having QB issues.
Also this year there are 3 division matchups this round, which can make things tougher as these teams really know each other, hate each other possibly. Have to factor in the coaching also as that could very well decide a game in the playoffs.