This is a very open question... you won't get much use from the responses unless you specify what it is you're trying to establish.
Are you interested in getting into programming but want to know which one will earn you the most money? Again, that's not a straight forward question.
Programming comes in tons of different forms... e.g. Desktop apps, mobile apps, games, simulations, algorithms, data manipulation, data analysis etc etc.
I would advise that you pickup a decent entry level programming language like C# or Java. Once you know the fundamentals you will quite easily be able to transfer your skills to other languages...
Don't pick a language "because it makes the most money".
On a related note, but not strictly in response to your question, there is a high demand for software developers currently and I foresee this continuing for a long time. It is a great industry to be in if you are concerned about job security.
Hope this helps...
