OP asked for my thoughts, so this are my thoughts.
I never, ever understand this kind of Non-sense unreal Video comparison, not because iPhone seems to always pull ahead, simply because you are not comparing apples to apples when doing this, as simple as seeing that iPhone pulls ahead when opening games will show you just that those games are way more optimized for iOS than for Android. Just do this tests with regular universal apps and you will see that most flagship Androids (not just Samsung) pulls ahead of iOS.
The same happens with benchmarks, impossible to compare apples to apples when you are using a device with 720p resolution 4.7" display vs a Quad HD 5.7" display, if you think that it doesn't matter, think again. Only comparisons I watch are the ones from different Android flagships, and from the same year and comparable specs, but never, cross-platforms comparisons.
The comparisons I'd like to see are:
1-) How they compare opening 2 apps side by side in multi window mode
2-) How fast and good they are with a stylus
3-) How fast I can transfer a music, photo or video file from my computer to both of those phones connected to it
4-) How fast I can create and add a ringtone
5-) How fast I can locate and access any app from my customized home screen
6-) How fast I can access my photo app and take a picture by double pressing the home button
7-) How fast and for how long I can use any app under a torrential rain
How fast they access widgets in all the screens
The above just to name a few...
So you may think that it's not fair because one of those devices can't do any of that? Exactly...