Dark or soft bonkai?
I DO like them both!! But I guess if I ~had~ to pick one, I'd lean towards dark bonkai 😅To me, darker Bonkai feels closer to their dynamic in canon TVD, so it's easier for me to imagine those kinds of interactions happening between them VS softer bonkai requires me to suspend my disbelief a tiny bit more, bc it's farther away from what we saw of their personalities together on the show.
I also feel like dark bonkai I've read in fanon tends to be more ~out there~ Like the authors feel freer to take more risks with the content that you wouldn't normally see as much on TV, most books, or other ships' fanfics and it feels very uniquely BONKAI, uk?? Take most of @thefudge's Bonkai fanfics, for example - where ELSE would you see Person A feed desiccated Person B MICE in a prison world* or see Person A and Person B literally orgasm while stabbing each other in a burning car**?? Nowhere!! Bc it's so ~specific~ to (dark) bonkai, uk? Even @foxdvlwild's Heathers AU of Bonkai*** was so THEM even tho it was based on the plot and characters of another movie (and that fic was a great mix of dark and soft bonkai)
I like soft Bonkai on its own too, but if it doesn't have at least a ~bit~ of that spicy Bonkai flavor to it, then I don't enjoy it as much bc it feels less unique to bonkai and more like a general fluffy scenario that could apply to any mildly similar ship. And, again, that's totally fine! Those fics are super fun to read too when I'm in the mood for seeing Bonnie and Kai be happy, light and fluffy, but my personal taste while reading tends to skew more towards either a mix of dark and soft Bonkai, or fully dark Bonkai 😁Thanks for your question!!
*This is Bloody Business by thefudge
**Sharpen Your Knife by thefudge
***Dead Girl Walking by makeashadow_ao3