Park Edwards
Veteran
Having done a million comparisons, I can guarantee you that no settings will please everyone.
If you leave it as neutral, people will say "that doesn't represent what the camera's capable of, only what the default settings are."
If you attempt to optimize it, someone will say "but you didn't do it right, you messed it up."
If you attempt to get them to match, people will say "what's the point -- why not show how they can be different? Showing them the same doesn't prove anything."
The only people who usually agree with any given testing methodology, are those whose favorite camera happened to "win" that particular test...
you could offer a free peanut butter and jelly sandwich to everyone from each test and there's always going to be someone unpleasant with the results.
my perspective is if you're going to test the camera's, make them equal in settings. that way there's no difference in them other than the person who's using the camera's. so the end result is every test is relative.