Here, let the professionals teach you something about this:
http://www.displaymate.com/Galaxy_Note5_ShootOut_1.htm
The facts is right there. Super AMOLED screens today are the absolute best screens out there.
Here is something from that link:
The Galaxy Note 5 matches or breaks new records in Smartphone display performance for:
Highest Absolute Color Accuracy (1.4 JNCD), Highest Peak Brightness (861 nits), Highest Contrast Rating in Ambient Light (183), Highest Screen Resolution (2560x1440), Highest (infinite) Contrast Ratio, and Smallest Brightness Variation with Viewing Angle (24 percent). In addition, almost every display lab test and measurement shows some improvements compared to the Galaxy Note 4, the previous record holder, including slightly lower Screen Reflectance (4.7 percent), an 18 to 23 percent improvement display Brightness, and a 21 percent improvement in display power efficiency, so the Note 5 display actually uses less power than the Note 4 in spite of its much higher brightness.
In short, even when the IPS LCD screen on the iPhone 6S Plus is pretty good, it still doesn't even comes close to how good the screen on the Galaxy Note 5 / Galaxy S6 edge+ is.