Wow, i have to admit that i didn't know anything about flixel-gdx, i work with haxeflixel but its almost the same core :P
I never tried haxeflixel, is that action script?
I really recommend flixel-gdx. Has a lot of work done for you without including any other library
It's written in haxe, crossplatform and wirh new features. They release 4.0 a little time ago, the community ia very helpful i strongly recommend it. Take a look haxeflixel.com
