Let's see,
Can't trust Apple
Can't trust other testers, probably bought out by Apple
Can't trust Consumer Reports
But do trust one artificial test, isolating the processor and running one phone.
So you can't actually say there is a big difference in chips, but don't trust anyone that demonstrates it.
Beginning to see a pattern here? Just curious, how old you think the earth is? Do you think the moon landings were real? Do you think you are being spyed on, I mean other than by NSA, Google, and Facebook? I demand Apple prove that unicorns don't exist. If they don't, well then, they must be hiding some, probably in China.
Are their defective phones out of the 20 million made so far? I'm certain of it. Will Apple stand behind their product and replace them? More than likely. After all they have built an infrastructure to do just that. Of all the phone suppliers in the world, Apple has consistently demonstrated they will replace a bad product. Far and away more effectively than the others.