Inadu
I've always thought Inadu's power was more impressive to me than Hope's not because I think Hope is weak, but because of where their power comes from.
Again this isn't me saying Hope isn't powerful obviously she is, my point is that Inadu's power is more impressive to me because everything she achieved it how terrified people were of her came from being a witch while hope's reputation is built around being a once-in-history tribrid with vampire, werewolf, and witch abilities. Inadu became a magical force of nature without having the advantage of multiple supernatural species but still was a major powerhouse.
Even without bringing up feats what impresses me more in Inadu is she wasn't powerful because she was a combination of three supernatural species she was simply a witch whose magic became so overwhelming that even in the present she was feared for centuries after her death that's a different kind of accomplishment, and personally I find it more impressive.
Knowing this fandom I know I'm going to get people trying to twist my words and one thing that would irritate me is if anyone immediately assumes this is about downplaying Hope just because I said another character impressed me more with there power than hope.
And I only brought up hope because she is the most powerful in the franchise according to the writers so it's just me saying even with inadu not being the most powerful I still found her way more intense, I'm also not trying to compare feats because that wouldn't even be a fair comparison. Hope has Seasons 4 and 5 of The Originals plus four seasons of Legacies and Inadu had far less screen time, so of course Hope has more opportunities to show what she can do especially as a main character.
Personally, that's what I find more impressive and this isn't me saying Inadu is objectively stronger than Hope or that Hope is overrated it's simply that if one character reaches an incredible level of power through witchcraft alone while another's extraordinary power comes from being a one-of-a-kind tribrid, I'm naturally going to be more impressed by the witch who accomplished all of that with only one species.