Alright, what's the Best Horror Series/Franchise of all-time?
Remakes count. And try your best to judge them by being somewhat consistently good in terms of the sequels being good. It's easy to say that Freddy and Michael and Jason are the best/biggest franchises, but do their sequels make them the best series?
A Nightmare on Elm Street
Halloween
Friday the 13th
Hellraiser
Child's Play
The Exorcist
The Texas Chainsaw Massacre
The Evil Dead
George A. Romero's "Dead" Saga
Children of the Corn
Alien
Psycho
Saw
Hostel
Final Destination
Paranormal Activity
Scream
I Know What You Did Last Summer
Re-Animator
Amityville Horror
Poltergeist
Lepracaun
Candyman
The Omen
Resident Evil
Hatchet
Jeepers Creepers
The Howling
From Dusk Till Dawn
Urban Legend
Pumpkinhead
Puppet Master
Wishmaster
That's a very interesting question. My personal favourite
Horror Movie, and arguably the greatest of its genre, is Halloween. However, it might not be the greatest
franchise of all time simply by the fact that the only really good movies in the entire series are Parts 1, 2, and H:20, with an honorable mention to Part 4
By following your criteria, I'd say the franchises rate something like this:
1) Friday The 13th (Parts 1 through 3 were really good, with The Final Chapter being not quite as strong as its predecessors. Part 6 was fun, and Part 7, while technically not nearly as good, at least had Kane Hodder as Jason and some cool visual effects. Everything else, including the remake, was subpar.)
2) A tie between Halloween and A Nightmare On Elm Street. (Both franchises only had three really good films and a single honorable mention to their respective names. For Halloween it was Parts 1, 2, and H:20 with an HM to Part 4. For ANOES it was Parts 1, 2, and 3, with an HM to New Nightmare. All other films, including the remakes, were rather abysmal.)
3) Paranormal Activity (I felt the first two movies were really well done, and then started to slip with Part 3. I haven't seen Part 4 yet, so I'm reserving judgement on that one. I'm hoping it'll be at least on par with Part 3.)
4) Texas Chainsaw Massacre (Of the original films, I liked Parts 1 & 3 the best. Part 2 was too silly to be scary, and I still haven't seen TCM 3D yet. The remake and its prequel were both okay. Not great, but not as bad as the Halloween, ANOES, and F13 remakes.)
5) George Romero's "Dead" Films (I really enjoy watching Romero's zombie movies. I don't find them particularly scary, but they're fun to watch. Night Of The Living Dead, Dawn Of The Dead, Day Of The Dead are all great. Even Diary Of The Dead, War Of The Dead, and Land Of The Dead are really fun. Honestly, the only thing keeping this series of films so low on my list is I don't find the zombie sub-genre particularly scary. If I did, the large amount of quality sequels, spin offs, rip offs, and remakes would put this series at the top of the list.)
I'm afraid those are the only ones I can think of that I've seen enough of to be able to judge. I Know What You Did Last Summer only had two sequels, of which I've only seen one. Only the first Alien movie can really be classified has horror. Aliens was more of an action movie. Alien 3 was just "Meh". And Alien 4 was more of a comedy.
Anyway, that's my list and those are my reasons. Take it as you will.