Well if we go by hype than I go with Hanzo since he must have been very skilled with his main weapon to have soloed the Sannin and a lot of other fodders all the same time without breaking a sweat. Hidan did pretty good up against an elite jounin and an elite chunin/low jounin level ninja but he got screwed over in the end.
If we go by feats, Hanzo gave Mifune a is at a higher level than Asuma in CQC skill but then again, Hidan was also dodging Shikamaru as well so it is a tough call. Going with Hidan though because Hidan is underrated and is perceived by a majority of the people to be a joke just because he lost to a "chunin". In his prime, even though we didn't see it, I will go with Hanzo since he was able to manhandle Mifune pretty easily which is a much better feat than defeating Asuma.
Anyway the wind scythe is superior to a normal scythe because Baki said that blades of wind are the strongest so naturally Temari should be stronger than them but this isn't the case, or is it

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