I've been asked a lot...a LOT...which writing software to use. Final Draft? Scrivener? Dramatica?
Obviously, a lot depends on what you're looking for. If you're a screenwriter, film or television, Final Draft is the industry standard. That's mostly because of its automatic formatting and the ease of file sharing: screenplay format is an epic pain in the ass, and it's hard to make it look professional unless you've been doing it for a while...or (of course) you have Final Draft.
Then there's Scrivener, which lets you write your manuscript but