I have got to say I love perl and php, for learning about languages is amazing. Started on python and that did my head in. Depends what your going in to, c# c++ if you want to go pro.
Brain****'s not that bad; the only difficulty lies in its absolute simplicity. Malbolge is a completely different game: just look at the Wikipedia page about how it works![]()
Returning to brain****, it makes quite an interesting project to write an interpreter for it that visualizes the program's control flow and the motion of the pointer in its address space![]()