Uh oh. Landmine right there. Though more of a minefield. The real question is, which part of the minefield do you wanna get blown up by?
Fuyu is the teasing, sexy, adventurous girlfriend who is willing to share you with other women and girls, who doesn't mind your Beast nature, and could get over the fact that you're her biological father. Holy crap.
Tomoe is super sexy, strong, a total badass, and practically a noblewoman. Yet she is demure, sensitive, and does get jealous when you're with other girls. She wants you and wants to accept you for who you are, yet she has trouble struggling with that part, especially when it comes to her own family.
...I'm gonna have to say Tomoe, giving it some thought. She's very much my type.