I would rather have a character driven story over a plot driven story just because I think characters are really what captivate me in a story. If your plot isn’t changed by your characters then the story’s events come across as forced.
I feel like you can’t have one without the other for a memorable, engaging story. If you can just swap out characters for anyone, then the plot probably isn’t that interesting.
And, alternatively, if the plot is great, that probably means the characters are. Boring characters are the worst thing to me, and if the plot is really good, it should make the characters interesting by how they react to it and grow based on it. I’d like to think that because the characters are who they are, the plot can’t happen any other way because of them I guess.
It’s more about balance, and also the intention of the story
Adventure and action stories need a lot of plot, about 60-40 plot-character; horror, thriller, mystery and drama stories need both, which is about 50-50 I would say; romance and comedy stories need more character development, which I would assume 30-70 plot-character.
These are just arbitrary numbers, and they only act as a guide. Most importantly, they should synchronize well.
Understandable characters make understandable choices, understandable choices lead to rational outcomes, and that explains character reactions effectively. A story doesn’t need realistic backgrounds, it only needs to be logical for the human mind to digest. That’s my take.
If there’s character development, then that’s because the plot is good enough, in my humble opinion.
I find the “good plot” statement to be subjective, though, so I’m going with character development. We can discuss if the plot is good, but there’s rarely disagreement when it comes to character development. Those changes stand out and are undeniable.
Character driven, all the way. I find whenever I come across a purely plot driven story I get really bored and annoyed because things just keep happening to characters. It feels like they have no agency. And, typically, the things that happen are clearly only happening because the plot needs them to, not because it makes sense for it to happen. On the other hand, with character driven stories, it’s their choices that determine what happens. Things still happen to the characters, but it’s how they react to those things that moves the plot.