My issue with you is that you are trying to make the iPad pro 9.7 the best display ever when in reality it's not. You cannot prove that it's better than amoled because quite frankly it's not otherwise displaymate would have stated so. It's a reason why apple is moving to OLED.
Also being viewable in bright light is not a Big deal to everyone. I'm someone who would never sit out in the sun with my iPad pro or other tablets. My phone is a different story. Also, most samsung devices are excellent in bright light just by placing it on automatic brightness which
can go well beyond the nits of other devices. The S7 can reach 855 nits maximum brightness (another reason why it's the best display ever)
Please read...
http://www.androidpolice.com/2016/0...laxy-s7-has-the-best-smartphone-display-ever/
http://www.displaymate.com/Galaxy_S7_ShootOut_1.htm
Many more areas where S7 supercedes the iPad pro 9.7 display...it's no contest truly
The Galaxy S7 matches or breaks new records in Smartphone display performance for:
Highest Absolute Color Accuracy (1.5 JNCD), Highest Peak Brightness (855 nits), Highest Contrast Rating in Ambient Light (186), Highest Screen Resolution (2560x1440), Highest (infinite) Contrast Ratio, and Smallest Brightness Variation with Viewing Angle (28 percent)
So being excellent in Ambient light is not the greatest aspect of a display.......
And for the tab S2:
""Tab S2 is one example of why there's more to making a great display than just focusing on resolution. It even looks better than some native 4K displays I've seen." (Haven't seen a ipad that beats a 4K display

......)
http://www.engadget.com/2015/09/18/samsung-galaxy-tab-s2-review/