First is a classic. Watching it now I can't appreciate it by today's standards. I have to remind myself that back then this type of horror was unheard of but watching it now it's just not as bad to me. I still consider it a classic for what it did for the genre. Second movie had a lot of comedy elements. The third movie was ok.

Skip "The Next Generation" unless you hate yourself. It's batshit insane and hardly makes sense at all.

The early 2000s remakes were actually good I think. The first one and its prequel "The Begining" are really decently and honestly some of the best. Anything after that is pretty bad and should be avoided.