What is the difference between autodesk maya , and autodesk 3ds Max?

Question

the second question is what are the difference between these two and blender? (Except the fact that blender is free)

Answer 1

They both are fairly similar so I would just check your job market and see what program that are mostly hiring. Then choose which one you would like to learn.  

Answer 2

Maya is more geared toward large studios who develop their own work environments. Its basic environment is very hard to work with.

3ds Max is much more intuitive, and "feels" better, albeit it's a bit less opened for extensions.

Blender is not considered a professional tool. I tried it only once and it was so unintuitive compared to 3ds Max and even compared to Maya, so I gave it up.