The difference between Night and all those others is that no one expects "greatness" from those others. It is expected from Night. And, to be honest with you, he hasn't lived up to it. Maybe he is a decent director. Maybe he has some nice directing tricks up his sleeve. But if the script ain't there, I don't think he should get the credit some people think he deserves. I believe a truly good director should be able to take a mediocre script and work wonders with it. Night hasn't even done that with his last three films (admittedly Signs was quite enjoyable until you actually see the damn aliens; then it was all downhill). And Night has no one to blame but himself since he does hyphenate as his own writer.