it honestly depends on what you’re comfortable with. in a descriptive writing, you need to be able to use good adjectives and know how to create what i like to call “word pictures”. when your work is being read, the reader will have a picture in their mind of what is happening. a personal narrative would probably be easiest, because all you really have to do is recall a time in your life that had impact on you or someone else, and then make it sound better (or worse) than it actually does. i personally would not write a persuasive essay because i’m not good at persuading, but if you’re passionate about the topic, go ahead! think of it as a one sided debate. hope this helps!! :)