I really have no idea what is going to happen in this game. One one hand, the Cowboys have been rolling & appear to be the better team. On the other hand, the Lions are kind of a bad matchup. It is also still very tough to forget that the Cowboys under Garrett/Romo have come up small in big moments many times over the years. The way they closed out the season shows that this team is different, but it's still hard to shake the 'they'll find a way to lose' feeling.
That said, I think they win but I am not overly confident in that stance. If they don't get up early & create at least a couple turnovers they could easily lose.