javascript vs lua

let's say i might be working on something ``secret'' and i want to embed a scripting language that isn't too off the wall for end users. i hear luajit is kinda fast and v8 is really fast and speed would be quite nice since user scripts might be called hundreds of thousands of times in short timeframes

i've heard javascript has better semantics and is generally more pleasant to use, but i want /prog/'s opinion so i don't fuck up and regret it later

Lua is JS done right. It's pretty obvious.