There are some awesome text editors out there that have features I wish were in sublime text but sadly arent.
For example, Rob Pike's acme editor has some really awesome ideas like mouse chording, (contextual right click. middle click command executions, etc), 9p vfs interfaces that allow plugins to be written in any language.
And then there are little experimental editor ideas like Conception with great ideas that are worth checking into.
https://github.com/shurcooL/Conception
Sublime Text gets alot of things right, but during my experience using it and using acme. I often find myself wishing there was a way to take both editors and mash them together because using one often makes me miss using the other.