What is the best demanding professional study course at now in global context?

Online Current poll on www.indiastudychannel.com
About, What is the best demanding professional study course at now in global context?
Current status:

1. 22% People says Medical

2. 18% People says Engineering

3. 29% People says Information Technology

4. 29% People says MBA,CA,CS

5. 0% People says Others

Vote your openion at ISC POLLS