I agree he’s heavy on brass and wind, and that his music can be bombastic, but that isn’t always the case. See Hook for a more delicate score with significant strings.Ok. Hot take here, but John Williams is incredibly overrated. I say this because of his over-reliance upon the brass and wind sections. That’s why everything seems so big and bold: he just audibly overwhelms you.
His best score and probably the only one that I can think of that is more understated and has good use of strings is Schindler’s List.
Second might be Jurassic Park. But too often his pieces seem unbalanced. Even though I like it, the Krypton Overture from S:TM doesn’t even have strings in it, which is kind of crazy.
I don’t think he’s overrated at all, though. His scores have serious emotional resonance and pleasing, memorable melody. Not only that, but he’s a master of setting tone, whether it’s fantasy (STM, ET), swashbuckling adventure (Hook, Jurassic Park, Star Wars, Indiana Jones), or horror (Jaws). It’s not an accident that the most memorable scores of the past 50 years have largely come from him, and that iconic characters (Vader, Jaws, Superman) have been largely buttressed by his sound.
I will say that some of his work can feel somewhat repetitive. But I can say that about many composers. Most people have their own identifiable style.