Michael Myers is fun and all but after so many years is like "ok... so what? What's the point here?". Maybe Halloween Kills isn't doing anything completely different but it has become repetitive and it showed.
In that regard Scream has an advantage, every time there's a fresh spin on it, whether you like it or not. The killers have different agendas, different ways of killing, their aggressiveness changes from film to film. That's why Scream, for me, has always been a step above in the slasher genre. It's always the same, but different.