With just one week to go, Sam and Christine are not holding back when it comes to how they feel about this lack of answers. They're also getting ready for the finale by calling Aria out while they still can, freaking out over the Mona reveal, and, of course, making their final A.D. predictions. They don't agree about who will be unmasked as the ultimate Big Bad — and neither does Allison — so listen to their theories to see whose side you're on.