I have the Coker button tread tire. I haven’t used the Nightrider, so I can’t comment from experience.
Have you been to the “Coker Discussion Thread?”
In that thread they talk about the different 36 tires available. I can’t remember the specifics right now, but it seems like as soon as a new tire became available there is a discussion about why it’s better than what it replaced.
When the TA came out people immediately liked how it handled road camber better than the button tread. The Nightrider was liked because it handled camber even better, and allows much higher pressure.
I’m sure I’m getting some of the specifics wrong, but I’m pretty sure the answer you want will be in that thread somewhere.