What I read into John's statement was a philosophy of taking the high road and promoting our choice.
It is implied that you are knocking the other classes. But it's a more noble road than mud-slinging.
Nobody gets hurt feelings and the discussion is more likely to be a positive one.
You'd have no reason to take it personally. Everyone is only addressing why their class is great.
Then like John said, you just let the process go to work. And accept their decision.