If you want Lua which is luajit compatible, do what I did and use Lua 5.1 for the scripting engine. This way, if luajit performance is ever needed, scripts written with my engine will not break.
Lua 5.1 + bit32 (because, yes, I like to be able to do bitwise and/or/xor stuff) is my current favorite scripting language.
Lua 5.1 + bit32 (because, yes, I like to be able to do bitwise and/or/xor stuff) is my current favorite scripting language.