I don't know about the others, but it seems to me that Tanya is the best. Her situations are closer to the average reader. She gets more time, too, I just hope she ends up with Nikolai as a normal couple. Emma and her gags, okay, Marie can go to hell with Frederick, Belt just quietly crossed her out, Anna is also obsessed with something, that blonde who gets hurt when she is humiliated. Tanya is the most normal and adequate of them all. Either let them be fine with Nikolai, or if Nikolai is hiding a crazy beast inside, then I wish Tanya just a good worthy ending. But considering how many interactions the main character has with Tanya, including a kiss (there seemed to be a kiss) It's like they're supposed to end up together.