[funkaster]

if you're just starting game dev, then pick an established game engine, like Cocos2d-x or Unity. Both can produce web builds.

[thosakwe]

I think it's fair to say that Phaser is pretty established. If you're just targeting the Web+2D, you can get a smaller output too, rather than, say, bundling Unity into your game.

Not a knock against those two, they're both quite good. Phaser is definitely a reasonable option, though.