Yes. In PoD Aviendha states that the woman-wrapped-in-hair angreal almost doubles her strength... - Edit 1
Before modification by Shannow at 09/12/2010 06:40:10 PM
Wow, is this a broken CD or what?
It is important to note that when Elayne decided to pose as one of the Forsaken she took her woman-wrapped-in-hair angreal and drew on as much of the Power as she deemed safe.
This is important evidence showing that Elayne considers the distance between herself and the Forsaken to be considerable (in raw strength at least). With her disguise she didn't think she could impersonate a Forsaken unless was filled with a lot of saidar. People might say that we all know that she's not Forsaken strength, but the important evidence is that she drew on as much saidar as she could. This, to me, says that she considers Forsaken strength to be much higher than her own.
Elayne knows how strong Moghedien is. I'm not saying that's what she aimed for. But I do think she aimed for Nynaeve level, and this hints once again that the difference between Elayne/Egwene/Aviendha and Nynaeve/Forsaken is considerable.
That means it would do the same for Elayne. Since Elayne maxed out the angreal - according to her own description - it would seem that Elayne was close to double her normal strength when she disguised herself as one of the Forsaken.
Since it fits VERY well with the evidence that Lanfear is approximately double Elayne and Aviendha's strength, this would put her somewhere between Nynaeve and Lanfear's strength level. Probably equal to Cyndane, most likely.
Lanfear = 100
Cyndane = 90
Graendal = 85
Nynaeve, Semirhage = 80
Moghedien = 65
Elayne = 50
That's pretty much what the evidence tells us. This scene merely confirms it.