It's a fool's errand at best, really.
Before we begin all of that though, we have to give a well-deserved nod to the movies that didn't make that final list. Even with us listing 60 great movies that deserve Honorable Mention (and much more), there are still a bunch of great movies that are going unaccounted for on either list. Honestly, just look at the movies below; at least 10 of them could be #1 on most Best of lists, and many more of them could easily make the Top 31.
Top 31 or Top 100, these are all movies that deserve to be watched by Horror fanatics this October. That at least is one point that can't be argued.
The links below go to Amazon or IMDB, depending on availability.