Yay, good for her (sis had my vote), it just fits so well too in terms of Christmas! More specifically with designs in mind that feature her with a holly branch and/or berries behind the ear <3
Like this one by Ukari:
She's my favorite of the CrowLeaf kits! I loved her being so obsessed and strict with the warrior code while also being a hypocrite about it when it suited her (such as breaking the rules herself multiple times but then berating others when they did the same). Her downward spiral at the end of PoT was one of the best storylines for a protagonists in this series, at least in my opinion. She did sort of feel like a different cat in OotS but I suppose that was the point.
Although one thing I still would've loved to see get adressed again was her trying to poison Leafpool at the end of PoT. But upon her return by the next arc, her mother just forgives Hollyleaf without it ever properly being mentioned again. Similarly to how Breezepelt trying to kill a pregnant Poppyfrost and his blind healer half-brother never gets brought up again after book one of OotS for some reason.
Still mad she did not get a power just because Vicky couldn't think of one. Even though her not having one turned out to be an interesting storyline for her as well, of course (and no hate to Dovewing, obviously). But I'm also still pissed that she didn't even show up in TBC except for getting mentioned like once by Ashfur in the prologue of ALitM. That was just such a wasted opportunity of her character's potential...
Favorite AUs of mine for her include ones were she gets worse and has no redemption. That includes ones were she did get a power but is either corrupted by it or another cat who uses her for their own gain (my picks for that are usually Sol, Ashfur or Tigerstar I).
As for the power I have in mind for her, persuasion or outright being able to control others with her words is a good one with lots of potential for it to go wrong (so to corrupt her, either without realizing it and instead fully embracing it, or being horrified at the realization and running away to protect others from her because she sees it as a curse).
My favorite MAPS for her include the
Look What You Made Me Do one and the
Buy the Stars one.