What to choose for easy learning and writing games in native android?

Question

Android

I saw a lot of libraries for native android such as:

• NDK
  
• AndEngine
  
• libGTX
  
• Many other....
  

Tell me what is better for 2D games and what will be the best results ??

Answer 1

Tell me what is better for 2D games and what will be the best results ??

It does not depend on the chosen toolset in the first place, but on your knowledge and skills.
You can even work directly with openGL if you can.

Answer 2

unity