She-Thor's only appeared in like 4 issues but she's already racked up some crazy feats. That strength feat in the second last issue was for example straight up ridiculous:
Ripping apart a Vibranium door with an Adamantium core that's ALSO magically enchanted to be invulnerable while almost human? Forget shattering planets, that's the craziest Thor feat of recent years.
She doesn't have any really crazy high end durability or power feats yet but we already know she has high herald stats in those categories based on what was shown.
To sum up, she's had very limited appearances so I'll give Powergirl the win by virtue of that, or at least greater experience (But not really because apparently Mjolnir gives her all the experience and even knowledge she needs) but based on GOT and the first 4 issues, I think it's already pretty clear she's more of a Superman/Thor/Hulk/Surfer type herald then a Power Girl type herald.
One of the things I like about Aaron is that everything is on an elevated scale from regular heroes similar to Lee/Kirby or Fraction (Although the latter was well...bad).
For example, Frost Giant version of Bar Mitzvah is being thrown into a Galaxy sized storm that eats Stars:
Or no-name slave Gods mining core of planets and Stars. Basically shit that has people jerking off to characters in respect threads are regularly done by the cannon fodder of Aaron's Thor.
That being said, f*ck this book, bring back GOT. The best thing that could come out of this is a female Thor beating the shit out of the Hulk. Which is why I hope they fight.
