Tapion said:
Mamiya has almost no feats, but i guess she could win due to her Yo-yos. Videl hasn't shown anything impressive either.
Kenshiro(Pre-Timeskip) vs. Goku(21st TB)
Mamiya did have a good athletic feat when executing that dog in Medicine City, plus anime-wise, she could solo several generic thugs.
Kenshiro oneshots even without Hokuto Shinken. He should be superior to Kasumi Kenshiro, who did a Large Island level feat.
http://vsbattles.wikia.com/wiki/User_blog:Lina_Shields/Hokuto_no_Ken:_Cloud_Split
He also gets MHS speed via scaling from both Raoh's Hokuto Gotensho and Liu Zong-Wu dodging Kasumi's pressure point strike from micrometres away. Needless to say, he solos Part 1 DB, nevermind 21st TB Galu.
Bio-Broly VS SSJ Broly (M10)