I like Sublime Text editor very much. Recently even bought my own license for it.
One thing is missing for me - is ability to pin tab and prevent it from closing.
http://www.sublimetext.com/forum/viewtopic.php?f=4&t=493
Especially it is useful when I do search in files and want to make a change in all of them. I press Ctrl+W but I can also accidentally close that tab with search results. I want to have an ability to prevent it :)