I feel like the

build is better right now because, mostly, of the interactions it has with Standstill. It starts off every game with a good beater or tempo dude (I'm using Cursecatchers instead of Javelineers). It then drops an amazing 2-drop the next turn, either Null Rod or Standstill (and if Standstill is still on the table when you want to plop down a Ninja, there's no trouble). In either case, the tempo, gained by the first turn creature and also the Mishra's Factories, becomes really important. I really like that the

mana base is able to support a full set of Strips and Wastes in addition to a full set of Factories. A build that splashes black simply is not going to be able to support the Factories.
Regarding Duress vs. Daze: You're right in that Duress is really, really good. However, Daze is still powerful. It acts as yet another tempo card, slowing your opponent down enough to let you win the game. By itself, it's awfully weak. However, 3-4 Daze in addition to Null Rod, Wastelands, Strips, Stifles, Cursecatchers, and whatever else, becomes strong. Also, Duress is simply abysmal when your opponent is in top-deck mode. Daze still has potential in that scenario, if only as a pitch card for Force of Will.
Nice to have you back, Haunted
