It should probably go without saying that the "John Williams" sound is no more the John Williams sound than mine is, as even a cursory examination of his (and my) influences should make abundantly clear.
But that being said anyway, what sets JW apart is not his orchestration; it's his use of cohesive symphonic structure within the context of film cues; two things which are almost always mutually exclusive. If you know 10 guys here who can do that, tell them to step up and take their rightful places as the new top-call guys, because as of yet, that's an ability almost totally absent from the landscape.
I'm sure you only come across like you've got an ax to grind due to some sort of internet thing. Nonetheless, I don't expect you'll be hearing anything different, musically, from me, anytime soon. Especially inasmuch as any comparison to JW makes me giddy as a schoolgirl.
_Mike