Both are the good colleges but if you want to choose any one of them then As per the analyzing report of Careers 360 IBS Hyderabad has AAAA rating which means very good in term of placement, Faculty & corporate exposure etc.

The top companies come for the placement in IBS HYderabad like  Arcesium, JP Morgan India Finance Center, Khimji Ramdas India Pvt Ltd.,RA Consulting Services, RetailOn IT Consulting Services, Triniti Advanced Software Labs Pvt Ltd. etc. The average packege you can expect 6.9 LPA. You can also check the complete placement with the given below link.
IBS Hyderabad

The companies visit to the campus SIBM Hyderabad like KPMG, Delotte, GATI, Mahindra, Bisleri etc. The average package you can expect 6.47 LPA. You can also check the placement report with the given below link.

SIBM Hyderabad Placement

Good Luck!