It’s better to prefer DU regular colleges given the choice. Course-wise, choosing B.Com over BBA is better, unless you are particularly interested in doing BBA. Here are some of the reasons why you should choose DU for your degree.

• Other colleges charge reasonably higher tuition fees compared to DU, especially for courses like BBA.
• If you are taking admission to a regular DU college try to engage in different activities. Join societies, clubs, etc. It will help you in the long run.
• In DU colleges, you will get enough time to do internships for work experiences. This will definitely look better on your CV.
• If you are a graduate from DU, then you will get certain advantages over Non-DU candidates, in job interviews.
• If you want to study CA, CS, etc. along with your degree, then it is better to do a B.Com. Since the B.Com syllabus will have more subjects related to CA, CS, CWA, etc. You can also easily prepare for other competitive exams, without your college timing being an issue. 

Considering all these factors, doing B.Com from a regular DU college will be better than doing BBA from Amity University.