Personally, I prefer character development! It gives me great satisfaction and joy to watch a character grow, regardless of if they are relatable to me or not. Learning why a character is the way they are or how they're going to be after the story's events -- these things make me definitely sympathize and enjoy a story 100% more. Although, I find that most translated works I've read seem to have very very slow/gradual/minimal amount of character development; especially in the Chinese transmigration novels I've read. It seems they favor the character having a steady personality and being badass from the get-go than gradually developing as a person. This gets to me sometimes, but I still get my satisfaction from reading revenge stuff, fufu.