ArtH1B1979

Hi, I am in the US with H4. I have a Bachelors in Visual Communication from India. I have 13 + years of work experience. I wish to do Masters in computer Science in one of the universities in the US. 1. How easy/hard or what are the odds to get a H1B through lottery after completing my masters? I have an art back ground in my Bachelors. 2. How easy or hard is to be picked up by employees to sponsor H1B Visa in the coming years?