For me it depends. I'm alright writing dialogue easily. It just everything else of the writing aspect of things. Like writing out things on what the characters are doing, whats happening around them etc; the idea is there most of the times, but it's the motivation and inspiration and energy to do that is sometimes needs to be found. Plot, still kinda early cause im thinking of a really really deep story, and if I run into writers block, it's either I work on sub plots and make "stalling chapters" to give me time to think. Making unique characters is well some what easy, it's just writing it out is difficult for some reason, action and thoughts wise. And my imagination is limited lots of the times.