All of the above to various degrees? I'd want to at least get a vague feel for what each of them is good for, how it interacts with the system, and the general

All of the above to various degrees? I'd want to at least get a vague feel for what each of them is good for, how it interacts with the system, and the general thought processes that accompany it for each one of them, so that I could say that "I could write something in it with some research". It's more about expanding my mind than about picking up a tool, with a number of exceptions for my workhorse languages (which are constantly changing)