Secrets of the Slate has this character ranking test; of course as the Queen of Kings you must have done it before. We know that Fushimi, Yata and Munakata are your top three (and Niki is most likely dead last). Me, and certainly many other readers as well, would like to see your complete ranking. Thank you for indulging me! Your blog is fabulous.
Niki is in fact not dead last! Largely due to the fact that most of the characters below him are either just as bad/worse (Colorless and Mizuchi) or I just don’t really have much of an opinion on them at all, like yes as a person Miwa Ichigen and Habari Jin are clearly superior to Niki but as a character I have much less of an opinion on those two as I do Niki, like at least I have feelings about Niki beyond ‘this character exists.’ Anyway, full ranking: