The differences are clearly perceptible and its personal whether or not these differences matter to you.
One reason I like Apple phones is that if my phone is lost, destroyed, stolen I can go to the Apple Store and 10 minutes later get a new phone and start restoring. Maybe you can do that with Google, xiaomni and huawei but that peace of mind it's worth it's weight in gold.
I'll admit it's a nice feature to get a quick replacement. Google will advance ship a Nexus next day if needed, too.
But let's be honest. I've owned smartphones for almost a decade now and I've never lost my phone or had it stolen or even destroyed. Just normal scratches and broken screens on occasion.
When iPhones and Galaxy's were more expensive and offered so much more in hardware and software, you could make sense of that insurance policy.
But now that we have competitive phones at such discounts, that insurance policy isn't worth as much. We're close to being able to buy two very decent phones for the price of a iPhone or Galaxy. How's that for an insurance policy?
The fact is that we're at a point where performance, features, quality are peaking and price will be the next big differentiator. Apple and Samsung are going to have to deal with it. Samsung first and eventually Apple.