Not raining on anybody's scare parade, but I honestly am not finding the new FNAF all that scary. it's trying way too hard with all the gnashy teeth and extreme aesthetics. While fun from an artistic point of view, I feel like it wavers too hard from the original creepiness that was the animatronics. Something about it looking actively malicious takes something away from it. There was something about that design that actually made it freaky. Maybe it's more comparable tone to the old animatronics of Chuck E Cheese franchises and such, but I just miss it.
The game mechanic seems a bit more of a call to home though. Admittedly, from 2 up, it started to feel like it latched onto the Foxy mechanic, (the one bit of control mechanic as opposed to what was simply responding to RNG hell) but the newer one seems to call back to when it was all about responding, instead of acting. The Silent Hill Vs. Resident Evil ideal, if you will.
I'll talk about this forever, sorry.