If you are comparing mainly between these two colleges, my advice to you would be to choose PESU. But according to my friends studying here, you also need to consider other aspects before making a decision. 

• You need to think about whether you are doing engineering out of pure passion or you are planning to pursue it for the degree. 
• If you are definitely passionate about the field and plan to secure a job in the field of computer science, then you should definitely join PESIT.
• If you plan to enjoy your B.Tech course and if you are not much interested in getting placed, you can decide to go to MVJ College, as PESIT is known to be very strict.

You should also think of considering other aspects like location, distance, fees and the kind of crowd that dominates the college.

• Knowing a student of PESIT, I can assure you the crowd is pretty decent. People work extremely hard and are focused to reach their goals. 
• Finally, all this comes down to how hard you work to succeed in your career. 
• The campus in the South for PESIT will offer you only 4 courses. If you are looking to join the CSE or ISE branches, you should come to PESIT. 
• If you are able to afford the fee for KCET as well as join PESIT for computer science, you will be able to fit right in.

With a little bit of hard work and determination, you will easily be able to land a tier 2 job and be able to earn all that you have invested within a year. If this does not suit you, go to MVJ college.