The Dawn Goddess and the Dark Goddess are both divine beings, with no significant disparities in their strengths. Otherwise, they wouldn't have been each other's archenemies. Even though it's unclear how their warfare unfolds, it is evident that neither side has ever claimed victory over the many years. So, at least on the surface, there's no clear distinction of who is more potent or feeble.
But...
Setting aside the real-world Motan and Yu Chen, at least the 'Morning Forgotten Language' in the 'Realm of Innocence' is much stronger than 'Hei Fan'. This fact rings true from any standpoint.
Even without considering the levels, the status of Yu Chen as a divine adherent, and her various talents in the game, are enough to leave Motan trailing by a mile. Even Kanglan, who prides himself as a high-end player, conceded his inferiority at the meetup.
This is a victory of character, a victory of the lucky emperor!