Hmmm... WoZ is kid, wife, and casual friendly IMO. Reasonably difficult and plenty to do. I like it more every time I play, though I don't know what it's like to own. Cute sounds and beautiful/trippy LEDs. Tons to watch on the screen for people waiting for a turn. I'm a sucker for upper playfields, and this game has 2 that are cool & well-integrated.
Ages of your kids? TWD is the opposite of kid friendly, with rotting, dead corpses and artwork sprinkled with blood. Just depends. The stuff of nightmares for younger kids, though my 10-29 year-old self would (& does) love the game. These are not Saturday morning cartoon zombies, these are photo-realistic, gnaw-your-arm-off zombies.