One of the more important features to me is the ability to view several blocks of code at the same time. So for example I could have one, 2, 3 columns of code visible at one time, (example: http://andreasviklund.com/wp-content/uploads/2012/06/sublime-text-2-beta-screenshot1.jpg).
This is useful when creating websites for example. I will have a .js, .css and a .html file open in 3 different panes. Because I have a widescreen device I am able to do this. Unfortunately Windows 8 does not support multiple launches of the same application, so I am not able to run two instances of codewriter side by side.