What Is Your Favourite Writing App?

There is a healthy abundance of writing apps in the App Store, all vying for that top spot on your iPad Home Screen. The fact is that there are a whole host of superb choices, which one you use will almost certainly come down to personal preference – where do AppStorm readers go to put their thoughts into words?
I, personally, am a big fan of minimal writing environments and have used iA Writer for the last year or so, but I’m definitely tempted by Byword.
Does Markdown support make a big difference in your choice? Do you want options, or a distinct lack of choice? Does the icon make a difference?
Is having iCloud sync a deal breaker, or is Dropbox your go-to service? All of these factors will come into play when weighing up the best writing app for you – where have you landed?
Let us know in the comments if I’ve missed a big one, I’ll add it in if possible, and what factors influenced your choice.