Seijuro did beat a Giant that was destroying buildings, tho', and either Kenshin or Sannosuke took a small building level attack in the Jinchu arc iirc.
Shizuku blitzes both of them, allowing her to win. She ought to take them all in raw power anyway via scaling from the other Troupe member's arm wrestling ranks.
Saban/DBZ Funi Dub Raditz VS Golden Oozaru Goku in a marathon
Joseph, probably. Considering the OP'd nature of swords in the RRA arc, I could see Joseph simply using a Hamon charged sword akin to his granddaddy's to some desired effect.
young Daimao vs. Kars (assuming he can't regenerate if turned to ashes)
If Kars' Light Blade or Hamon (assuming it's Ultimate Kars) can penetrate Daimao he low-diffs due to far superior reaction speed. If it's Novel Kars, he zero-diffs due to being > GER.
The entire Ginyu Tokusentai VS The Duwang Gang in a group posing contest.
Raizen is far faster, though if Cui lands even one punch he should win, unless taking the loose planet level implications in YYH as anything beyond hyperbole.
Daimao rapes as I don't think his power up was that massive based on Goku equaling him afterwards just by raising his effort, and Meruem's limits were clearly established as enough to equal out a mere country's army.
If taking the Jagi Gaiden as evidence, even initial Kenshiro oneshots. If not, Kenshiro still benefits from Falco tanking a MCB Level Bomb, so he oneshots regardless.