So basically, this is like the compression free audio vs the zero loss audio compression argument. The only way you know one is better than the other is because somebody tells you so. Most of us probably wouldn't know the difference and wouldn't care, anyway.
So far, based on everything i'm reading in here, the only thing I feel I would have noticed is that there's no backlight on a OLED as it's self lit and Blacks are truly black.
That's pretty much it.
EDIT: It's also nice to hear that it's using less energy. That's always great.
4 ≈ One