Hard agree on lua v. viml. Viml really isn't that bad. I'm certainly not claiming it doesn't have its warts and shouldn't keep improving, but it's a DSL for a text editor...

And as you point out, you still need to know a bunch of viml that you have to wrap in Lua calls.

At the same time, I haven't actually given vim scripting in Lua a fair shot, so I'd be happy if anyone could shed some light on why they might think it's better.