Wow, they each had their good spots, and their sucky sequences, but I think the original series was best. It didn't try to be politically correct, it didn't try to avoid violence, until the ratings went in the dump, it had a relative of mine in it, once.
Favorite series of movies? Star Wars, Star Trek, Halloween, Friday the 13th, Nightmare on Elm Street...Anything that has more than one sequel, 3 movie minimum!