See all this three fields have good possibility in career. Now if you want to see the investment of time and money in any of this fields vs outcome then being an Pilot it has more investment and comparably the outcome is good. Now if you go for CSE from good colleges then the outcome you will get in terms of income will be comparable or higher compared to that of Pilot. Now Automobile Engineering may have good career prospects if you do it from a very well established colleges else the jobs will not be of that outcome. So as per my opinion to get into a field with moderate or lower investment with good packages then go for CSE. IF you have a passion for flying then go for Pilot but remember if you go for Civil Aviation then the investment is quite high. You can go for Automobile Engineering if you like to go but the salaries will be not of the level of CSE.

To know more about CSE visit the link below:

https://www.careers360.com/courses/computer-science-engineering-course

To know more about Automobile Engineering visit the link below:

https://www.careers360.com/courses/automobile-engineering-course

To know more about Pilot visit the link below:

https://www.careers360.com/careers/airline-pilot

I hope this helps.