I was going to try Lua but then I was reading some websites and multiple ones said that Java or C# is more extensive as in you can do more with those two languages. But you also loose the simplicity.
From what ive heard Java isnt as easy or as extensive (though I may be wrong) as C#. As for saying all that I have a friend that is willing to help me with C#
Java and C# are very similar, I can't imagine C# would be much easier. But, if you have a friend to help you with C# then that's definitely your best choice.