I'll just make this one point:
Priscilla was not merely an above average Claymore.
Priscilla was the 2nd most powerful Claymore of all time. Only Teresa surpassed Priscilla, as being the most powerful Claymore of all time. Teresa, terrifyingly, being far more powerful then even Priscilla, hehe.
Priscilla was far more powerful then even Irene, whom feared/realized Priscilla's power and yielded her rank 2 spot to Priscilla without a duel.
I personally have a hard time, seeing Claymore Priscilla (and Sophia and Noel) dealing with an AB, let alone an Awakened rank 1, such as Rosemary was, and especially not with the ease that Teresa done so against Rosemary.
However, we know Irene is powerful, and Sophia and Noel must have been powerful as well. Unfortunately, we only see them fight against Teresa, and using only "conventional" fighting as well. So, this is all true/same for Priscilla as well, whom as I said, is more powerful then even Irene.
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I have a theory that:
Priscilla, Irene, Sophia, and Noel were so powerful that they didn't need special abilities/powers/attacks (excluding Irene's Quick Sword). They had such power, that merely using "conventional" fighting was deadly enough as it is. They were that powerful, that they didn't need to do anything "fancy" (excluding Irene's Quick Sword).
For instance, Sophia could slice through both a stone pillar and the normal yoma's body behind it, with just a normal sword swing. Sophia didn't need Rachel's "Strong Sword" to generate a powerful swing, because Sophia was that powerful on her own.
Noel had such speed and agility, that she didn't need anything special either. Noel didn't need Miria's Phantom Step to be fast, because she was already that fast on her own. Merely using her speed only/alone to even briefly slice off Awakened Priscilla's left arm (before she immediately re-attached it with her tentacles and then sent her tentacles into Noel's body/eyes/head killing her).
Also, Irene's, Sophia's, Noel's, and Priscilla's yoki releases were so powerful that it caused the ground/town/bridge to shake. That's some power by them.
And yet, Priscilla had more speed and strength then even Sophia and Noel, and was more powerful as I've mentioned earlier then even Irene too. Priscilla (and Irene, Sophia, and Noel) just didn't look very powerful, but she (and they) was (were).
I mean Priscilla's and Teresa's normal sword clashes alone shaked the ground/town/buildings as well. That's a lot of power.
Unfortunately, all of this "conventional" fighting of theirs (despite all of their tremendous power), is quite boring for us readers, and thus we wrongly get the impression that they were all weak, when it's the opposite that is true.
Think of it this way, if you're weak, you're going to need to have/use special abilities/powers/attacks. If you're strong, you don't need anything special, as your normal/conventional attacks/fighting is usually quite adequate to "get the job done".
And lastly, then we got Teresa herself, whom "dwarfs" all 4 of them (Priscilla, Irene, Sophia, and Noel), yes including Priscilla.
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Ophelia is another example of this. Excluding Ophelia's "Rippling Sword" which was just "icing on the cake" anyways and her ability to twist her neck 180 degrees, Ophelia had nothing special about her, yet she was rank 4. So, why/how? Because the one thing that Ophelia had was, her sheer power. Ophelia killed the rank 6-9 female AB in a single NORMAL sword slice!
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I wish we could have seen:
Teresa/Priscilla/Irene/Sophia/Noel vs Alicia/Beth !!
and my own interest especially in Irene:
Irene vs Dauf and Irene vs Rigardo
