Ushiwakamaru or Anne and Mary rider?

Ushiwakamaru is more useful, she has decent team support with team-wide attack and NP gain buffs. She can also has an Evade after her rank-up, something Anne+Mary don't have. Also, Ushi is easier to NP5

Ushi, and by a pretty large margin. Anne and Mary'g NP gimmick makes their damage really inconsistent, not to mention that they don't add to the team in the same way Ushi does with her charisma and Secrets of the tengu. She also has a hard survival tool in an evade, which makes her live longer than the Pirate Duo. Also since she's a 3 star, she can get NP5 fairly easily, which adds a lot to her damage.

Same as above. Yoshitsune is much better than the lesbian duos. While the lesbians can and able to dish large amount of damage if they can brave chain with critical damage, Ushi is more stable. NP damage wise the lesbians can deal more in lower hp but relying on OC. Ushi has the highest flat NP damage for 3 star rider if buff can deal almost same amount of damage as Kintoki rider. Ushi will also have 2 strengthening quest that will improve her survivality and damage output. 1st is 1 turn evade + critical star drop (already available) another one is improve her 1st skill and add + 20% quick damage at lvl10