/signSylvanas. Like how is it even a question?
And I'm not just talking about "gets into a scrap and comes out miraculously unharmed," I mean "does something colossally stupid that should upend the horde's relation with critical allies and faces absolutely zero repercussions for it."
Cenarion circle? Completely mum on the burning of a world tree. Unleashing the blight? The argent crusade have no opinion. Stealing away Kolitira deathweaver for years of torture? Knights of the Ebon blade will get around to freeing him and then just let bygones be bygones. Attempting to enslave the queen of the val'kyr using an artifact obtained by making a deal with the mortal enemy of the valarjar? Odyn can't be bothered to remember that happened.
And don't give me that edgy "She's so STRONG and FIERCE that they just HAVE to let her do those things!" answer; it's patently hole-filled writing.
Let's also not forget that she's died three fucking times. How many times does a character get to be brought back from the dead before it becomes stupid?
And through ALL of this... all of her losses, all of her barely-scraped together victories because some deus-ex machina came through for her in the end... she's still the same insufferably smarmy bint of a character to boot. No character growth. No development. No characterization beyond "well you see, she's scheming to some unknown end."
No other characters come remotely close.
if we dont count the player character (bc that isnt even plot armor, its the very nature of the world/game) then theres nothing to add here