B.Com and BBA has its own merits. To choose any one course its totally depends on your Interest, If you are Interested in Accounting field, then B.com is best course for you. But if your aim is to do MBA Course then BBA is best option for You.
After B.com you can find jobs as a accountant, auditor, analysts or Finance Manager, finance and HR. BBA is also a good options if it is followed by MBA. After BBA the students can get into Marketing, Human Resource, General Management, and Finance etc. After Completing B.com, You can also go with MBA Course But if you can BBA then you will easily Handle the MBA Course.

Good Luck!