As for me I prefer using Lua, only if it can be done..
Well, I found Lua easy and it can achieve what C++ can achieve outside of game hacking, for example android/ios programming there are plenty of plugins out there allow you to make an app using Lua like corona sdk for example,
You can make your very own 3d game with Lua using Unreal Engine 4 and its scripting plugin...
I don't know if its possible to hack in ava using Lua, but if its possible that's what I am going to choose.