Both are biographical asadoras about pioneering women in their fields. Asa is based on a leading Osaka businesswoman, while Tora-chan is based on one of Japan's first female lawyers and the first female judge. Both are also the closest asadora has gotten to a political, feminist stance. However, this doesn't hinder the viewing and only makes the stories more realistic.
These are both asadoras based on actual women. I read the biography about Muraoka Hanako, which served as the source material for "Hanako to Anne." Hanako actually met Hirooka Asako (renamed Shirooka Asa for "Asa ga Kita") and she served as an inspiration for her. For this reason, I think these asadoras complete each other nicely and they are both 10/10 for me as well.