I have a complaint: hate drafting is too good in this game compared to others I've played.
Magic has 8 players pods so hate drafting is ludicrously stupid. You have only 3/7 odds of facing whatever you pass. With 4 players in a pod, you're 66% likely to face any broken combo at the table, so you have high incentives to break them up.
Dreamblade also had 4 players pods, but an individual mini could be played in any team whereas here you have 2/3 of the cards in the packs only playable by picking a small subset of characters. Again, this makes hate drafting a much more viable strategy than picking a mid-pick card you might not even get to play.
Also: monster boosters. Ugh. Especially in SoW. If everything was Alliance or Horde it would actually be not too bad, since you'd have a lot of class-specific cards and class characters. Open 3 out of 4 SoW boosters as monster boosters, though, and I hope you weren't hoping to fill out a marginal character's ABC collection (or get a character for your stack of good ABCs that happened to fall in your lap without a corresponding character).
"The beatings will continue until morale has improved."
- Standard corporate management technique