You are dead wrong about Serling - he was a great writer - his teleplays were some of the best writing done at the time and with Patterns and Requiem for a Heavyweight, many others, he became one the major playwrights at the time on live television. This allowed him to do the Twilight Zone which was partly a way of doing serious themes without interference from the money people at the networks, since these themes were disguised within "fantasy" stories.
So that is not true about Serling not being the creative force - Serling wrote a large proportion of the scripts and was so prolific that he had to dictate the scripts via a tape recorder recorded in the middle of the night. He was a maniac writer. Richard Matheson also - he is a great writer of fantasy and sci-fi who created an enormous amount of the best work in the field. Many collections of short stories, "I am Legend," "What Dreams may Come," "Somewhere in time" - a tremendously prolific writer.
Concerning Zimmer though I agree - his so-called music is a horrible oppressive noise. I want to see certain films but when I see he scored them I can't go because I don't want the pain of hearing that noise. The fact he is now the most highly paid film composer is extremely disturbing and indicative of total decadence and dysfunction in the medium. In the past there were Herrmann, Korngold, Goldsmith, Max Steiner, Elmer Bernstein - now there is a mediocre hack creating "sound design" - TRANSLATION: "I can't compose actual music." And all the directors and producers are fooled by him. It is sickening.