Original. Doom 3 banks on its dark atmosphere, which BFG ruins by brightening up everything too much. BFG also gives the player too much ammo. Now, is the flashlight a pain in the ass to switch back and forth between in the original? Yes. But the original is true to the creators' visions and can actually creep you out. Its like a weird mix of Half Life, System Shock 2 (minus any RPG elements) and survival horror elements, but with Doom monsters. The BFG edition tries to make it more of a standard action game rather than a darkly atmospheric slow-burner, but the changes make the game worse. If you want a fast paced fragfest, play any other Doom game instead (1, 2, 64, 2016 or Eternal). If you want a slow, dark, atmospheric horror shooter, play the original Doom 3. BFG is neither here nor there, and satisfies neither camp.