Yes, I would date my favorite character if they were real. Theoretically, the compatibility should be quite high.
The majority, though far from all, of my favorite characters are also people I assume I would get along with (the female ones mostly match my preferences) or at least be able to tolerate their negative quirks and enjoy the positive ones.
Theoretically. The problem with fictional characters is, the information we have on them is more limited than we think. Even a heroine from a 80+ hours VN is only portrayed in a limited number of situations. And most of them are different from our everyday lives.
Even though we may think we have a pretty good grasp on a character’s personality, imagining an everyday life with a certain character, even your favorite one is surprisingly difficult. I can imagine spending quality time with her just being in the same room and quietly reading stuff. It would be even more fun if we could read the same thing together, then spend hours discussing it. Aaaand the first problem is already there. I do know we both enjoy ‘reading’, but that’s a bit vague. Would I be able to get her to read LNs and VNs? I consider those to be a perfect fit for intellectuals, but that’s just my personal superstition. Those might not fit her tastes at all. Would I be able to enjoy poetry like she does? I’m by no means against it, but I’ve only ever dabbed into poetry when it was part of classes. Would I be able to return to classic literature, the likes of which I haven’t touched for a decade? I kinda “feel” like it would work out, but my brain is also giving me some warning signals. I’m slowly leaving the territory of what I “know” and moving closer to wishful thinking. I may only be projecting my misconceptions and personal desires onto her personality.
I imagine saying something, getting a sick burn from her, then trying to be witty, only to get back a retort twice as good as the first one. And then I’d be laughing, cause I enjoy good burns even if I’m on the receiving side. This part is easy, because I know she’s good at making retorts.
But what if we had a fight for some reason? First of all, I can’t even imagine ever intending to hurt her nor being able to say anything that would be beyond her to handle. I also can’t imagine too many things we would disagree on, since, again, I assume our compatibility to be quite high. But of course there’s stuff we wouldn’t see eye to eye on. She’s a whole different person. I simply don’t know what it is. How would we handle a fight? How, if at all, would we reconcile? I have no idea, because I’ve never seen her having a fight with anyone! I can try imagining said situation but I’m also aware that I’d be just back to filling the gaps in my knowledge with misconception and wishes or half-random guesses at best. This is moving into the direction of “why I hate fanfic and doujins”, so I’ll stop here, but I think you all get my point.