Sublime Text is text and source code editor for Linux, OS X and Windows written by Jon Skinner.
TextMate is a text editor for Mac OS X.
"But i ve found that sublimetext 2 has some features i like more than textmate and also tm v2 which is in beta"
from question "Making Sublime Text more like TextMate"
"Macvim sublimetext is much thicker whereas textmate is slicker and sophisticated"
from question "MacVim: Thicker font rendering compared to TextMate"