I use which language/engine/framework depends on the platform or the needs:
– I used pure AS3 and Haxe language to make a flash game long ago.
– I use Haxeflixel framework (using Haxe as basic language) now to make a flash game.
– I use Game Maker Studio engine to make a Windows platform.
– I use Power Point to make a game with pdf platform. There is absolutely no coding at all in this engine. I use this engine very often when I am too lazy to think any complex logic and coding.
– I am also in progress on learning to use Rpg Maker Vx Ace since I am interested in making an rpg gamer.
