Rather than disagreeing with a point while presenting evidence for an alternative point, you prefer to emphasize that we cannot know anything about anything and should refrain from building theories full stop.

I'm sorry, that is not acceptable to me. We can build a rough One Power strength chart. Will it be perfect? No.

But it is possible to do a whole lot better than simply proclaiming the total unreliability of every shred of evidence we are presented with.

You started by disagreeing with my definition of effective strength.

Fine, so I stated what effective strength means, namely that a man at 70% of the male maximum, and a woman at 70% of the female maximum, all other things being equal, will be able to match each other, despite the man's greater strength, due to the female's greater dexterity.

But then you chose to deliberately fudge the issue by saying that we don't know how Moghedien and Asmodean's skills and training compared to one another. Thereby, you are bringing additional factors into the equation, thus leading us away from pure effective strength.

In the absence of any evidence regarding their unique skills, it is logical to accept their other talents as roughly equal. For all we know, Asmodean's other skills exceed that of Moghedien, or vica versa.

The fact of the matter is, it is beyond contemplation that RJ intended for Nynaeve to be more "powerful" (let's use that all encompassing term for One Power ability) than Rand at any stage of the series.

Rand was the one facing off against the more powerful Forsaken, not Nynaeve. Rand is the "Heavyweight Champion of the World" in RJ's own words, not Nynaeve.

Even discounting Egwene's comparison of Rand and Nynaeve (which would be heavily biased in favour of Nynaeve in any case, due to Egwene's natural female bias, which is evident throughout the series), it is OBVIOUS that Rand is significantly more powerful than Nynaeve at the time of tSR.

And the battle at the end of tSR proved that Rand and Asmodean are absolutely equal in strength, since angreal add greater strength to stronger individuals than to weaker ones. A hair's difference in strength between the two would have been multiplied a millionfold by the Choedan Kal, thus ending the battle swiftly.

In this way, when Rand magnified his strength by only a small trickle - through his little fat man angreal, he ended the battle immediately.

So if Asmodean equalled Rand, he clearly exceeded Nynaeve. And if he exceeded Nynaeve, then he clearly exceeded Moghedien as well, who is Nynaeve's exact equal at the time of tSR.