It does depend on what you want to achieve.

Roving Crits will allow you to get comments on your stories, or chapters. You can ask specific questions like 'Does Jane's reaction to Dick's throwing the ball at her seem realistic?'

Or you could post and let critters make the comments as they wish to.

Under Genre Discussions we have areas where you can post questions or points of intereste with respect to that genre. There is a board for Romance and one for Fatanasy. Paranormal (my prefered genre) fits many genres - horror, fantasy, romance - so post under an appropriate genre.

Skills and Techniques is about writing skills in general. Or there are many motivational boards.

What do you wish to work on with respect to your writing?