September 20, 2015 10:00 AM EDT
I used to always go with Sahvee, the only marriageable argonian. After all who doesn't like some scales, plus for Non argonians there is natural birth control. Her personality also contrasted nicely with my ridiculously and annoying brooding and miserable character.
However of the ones you posted, the obvious choice would be serana, as she was the only one with a real character voice. Also vampirism.