Part IV is one of the better films, but has some "schlock" that I'm not a fan of. I don't like deliberately annoying characters that encourage the audience to want them killed. The first few minutes in the hospital with the annoying doctor and nurse are the worst for me. After that the movie is much better.
I would much rather horror movies start having characters that the audience actually does NOT want to die, you know, the "Game of Thrones" effect. People die so much in that show and everyone loves them for it. I think it would be a great trend to start in new horror movies.