I can't talk about the others, so I'll compare Wren and Lua. I dislike Lua's approach to objects, feels clunky and prototype-ish. I also dislike the local/glob

I can't talk about the others, so I'll compare Wren and Lua. I dislike Lua's approach to objects, feels clunky and prototype-ish. I also dislike the local/global stuff. Wren has exception-like error handling and concurrency. And the object model is very similar to C#.