Everyone "does it differently" whether they're trying to or not. There are people who actually pore over scientific data in order to determine the exact logistics of Ansel Adams' photographs so that they can "shoot their own Ansel Adams photo". And even then, it's still not the same.
And that's the rare exception. Most people who get accused of copying are not going to such lengths. Is the result different? Yes, it's absolutely different, unless one chooses to just willfully ignore the differences and place all emphasis on the commonalities. If that applies to flat-out plagiarism, then it absolutely applies to the majority of photographs. Every time I walk out my front door, the world looks "different".
Gene, your tone sounds argumentative, but I don't know what you're arguing against.
I'm saying: Each person's work will be unique because it came from that person and the person is unique. Everyone's brain is wired differently, and everyone has had a different set of life experiences; and beyond those starting conditions, a photographer makes numerous conscious decisions when creating something.
You're saying: No one's work looks just like someone else's.
Where's the difference?