From a practical point of view, what you should consider is not which language is good and which language has a future. You can make a good android game with java or a good WebGame with AS. Don't think it is too difficult for individuals to do it. You can at least conceive a game framework and at least master all the programming difficulties in game making. You can come up with a game work developed by yourself, whether it's an Android game or a Flash game, which will help you find a good job. No one will argue about what you invested, you can start your own business.