The madmen in the graveyard even carry actual chainsaws, so that smell of gasoline is the real thing. Dario Argento couldn't have orchestrated a more cinematic experience.
House of Horror is the most thrilling haunt of the three, but are any of them truly scary? The aforementioned tortured tweens aside, the answer is "not really." I'll admit to feeling startled now and then, but if you've seen a few dozen horror movies, you'll be able to anticipate most of the scares. And after all, it's hard to generate a sense of genuine terror when you know that, in at least two of these cases, you're a brisk walk from a Kohl's.