This is a complex subject for a short essay, particularly since you have three epic texts to consider. You will only be able to cover a few key points. In Sundiata, several important considerations arise early on, after the recitation of the Kings of Mali. The first woman mentioned in the poem is Sogolon, of whom the hunter tells King Maghan:
Oh that woman! She is ugly, she is hideous, and she bares on her back a disfiguring hump ... but, mystery of mysteries, this is the woman you must marry, sire, for she will be the mother of him who will make the name of Mali immortal forever.
First, Sogolon is evaluated solely by her physical appearance. Second, she is only important because she is fated to marry the king. Third, even this is subordinate to her role as mother of an even greater king. The same is true of Eve in Paradise Lost. Unlike Sogolon, Eve is beautiful, but even her beauty is less important than her role as mother of mankind, and her subordination to Adam. Milton makes their inequality, and Eve's lesser role, very clear:
Not equal, as their sex not equal seem’d;
For contemplation hee and valor form’d,
For softness shee and sweet attractive Grace,
Hee for God only, shee for God in him...
The Popol Vuh, like Sundiata and Paradise Lost, is dominated by men, and women are mainly seen as mothers and daughters. Xquiq is the most considerable female character, and her importance quickly diminishes after she has given birth to the Hero Twins, Hunahpu, and Xbalanque. The importance of female virtue is emphasized in Xquiq's banishment when she becomes pregnant, though the narrative reveals that she is still a virgin, having been impregnated by the improbable process of a skull spitting on her from a calabash tree. The Popol Vuh therefore defines women through their relationships with men in a similar way to the other two epics.