Kinda amusing that kiddo Kaga is closer to fox battleship kaga than the original fox.

Could be a number of things. BB Kaga is younger than CV Kaga, since she was planned as a battleship before being converted into a carrier. Plus, her battleship self is less subdued than her carrier form, which can translate to a more open and friendly personality that's more approachable than her carrier form. And it's a technicality, while the carrier form is usually the first introduction to many players in AL, overall story-wise chronologically BB Kaga is the original one.