All the college you mention is affiliated to NTR university of health sciences,vijaywada and all are best in clinical exposure,faculty members.andhra pradesh medical college are best in providing facilities to students and they emphasis more on practical knowledge to theoretical knowledge.here is the ranking of colleges based on student reviews and primitiveness.

1.Maharajah institute of medical sciences,vizianagaram

2.GEMS,srikakulam

3.NRI institute of medical sciences,vishakapatnam

4.gayathri vidya parishad institue of health care and medical technology,vishaakapatnam

5.Nimra institute of medical sciences