Mine are a little bizarre, I have to admit.
I'll be honest, I don't watch or read a lot of romance. Granted I'm writing a series with a romantic sub-genre but that's neither here nor there. One thing I've always enjoyed, however, is the Tsundere trope in romance. (Toradora is one of my guilty pleasures.) I have no clue why. I've always just found it to be amusing and joyful to watch. Because we see that trope used all the time with guys. (Boy meets girl, acts like a jerk because he doesn't know how to express his feelings.) So why not with women too?
I think that's kinda the same reason I liked The Croods so much. I'm normally not crazy about movies like that, but the relationship between Eep and Guy actually really tickled me. I just love the idea of a prehistoric cavewoman seeing a dude make fire for the first time in her life and being like "Yup! He's mine now." And then basically dragging him back to her cave.
We see the trope of "Girl falls in love with Boy but she's not allowed to show it because gender roles." all the time. So seeing women portrayed this way is honestly refreshing to me. Where they're not just honest and upfront about the way they feel, but are completely unashamed of it. And in some cases a little aggressive about it.
I don't know. I think I just really enjoy seeing women have a more dominant side. (Please don't read too much into that. )