In some places Mata Parvati has Ashok Sundari as her daughter and in some places Saraswati and Laxmi? Which one is believed more?
All are symbolic representation of God's form. Maa Sakthi, Maa lakshmi and Maa Sarasawathi manifested by Maa Aathi Sakthi. From these three mother goddess, there are lot of Goddess manifested. Goddess Asoka Sundari(have some other name manonmani, bala thirupura sundari, vaalai) is form of maa sakthi who is so young(age 9, believed in some place, her age is 12, believed in some places). So she is treated as Daughter of Maa Parvathi. It is like incarnation or manifestation. Simply Asoke sundari is child form of maa Shakthi.