I am trying to pick a 6 star too rank up to rank 5

ZR07

These are my only 4 ascended 6 star champs at rank 4, pick one.

Gosting

These are my only 4 ascended 6 star champs at rank 4, pick one.

Vox is soooo powerfull. But neferia is the best in the game. İf you need power chose vox. İf you need functional a option chose neferia. Neferia damage is not so good but almost undead