I guess I am in the minority but I still fail to see why anyone would be excited for a sequel to the original. I watched it and it was fine but there were no unanswered questions or character threads that needed more development on screen. The monster gimmick worked well once but got old quite quickly. It amazes me that this ever became a series in the first place. It seemed like a perfect example of a solid, one-off science fiction/horror film.
It’s more conventional than those films, I guess because it’s a more direct adaptation of an existing story. I think whether you prefer it probably has some connection to how much you enjoy his direction. He seems to have more free reign when he is directing for something he has written himself, which leads to more experimentation. For the record, I agree with you - there were elements of Nosferatu that were outstanding but as a whole those other films you mentioned are superior.