IntelliJ IDEA 11.0.1 with the Lua plugin.
Great syntax highlighting, tons of features, and its easy to get it working well with love. (A few simple config changes and you can have it start love running whatever your developing, all with just a single click to the normal "Run/Compile" button)
Vim. Been using it for 10 years for everything on every platform.
One of it's advantages has always been lack of reliance on special keys and chorded keystrokes, which makes it awesome for telnet sessions and laptop keyboards, but I recently fell in love all over again when I started coding for the iPad. There is no editor even remotely as usable with the iPad virtual keyboard; I'd stake my left testicle on that. >.>
Notepad++, with manually edited shortcuts.xml to launch current directory in Love2d upon press of Ctrl+Shift+E. Seems about right.
Previously have used Akelpad, however that doesn't always work quite good with code, so yeah.
yal.cc
Contains things I work on. Also gets Love2d examples time to time.
notepad++ for love and Lua.. only because I have yet to find a Lua plugin for CodeBlocks, that is my preferred editor for c++
"For art to exist, for any sort of aesthetic activity to exist, a certain physiological precondition is indispensable: intoxication." - Friedrich Nietzsche