Here is a general comparison between the 2 colleges
Location: AIIMS Rishikesh is the best choice for nature lovers and those who prefer an adventurous life. But if you prefer a hustle and bustle urban life and want to spend time shopping, partying, and watching movies then AIIMS Bhubaneswar offers the perfect ambiance for the same. It’s not that Bhubaneswar lacks natural beauty, it’s just that Rishikeshs beauty is incomparable.
Population: Rishikesh has a less diverse student body being more of a tourist and cultural center. AIIMS Bhubaneswar has a very diverse student body as it’s located in the T hub of Eastern India. With more than 100 top colleges in the city, Bhubaneswar is more student-friendly offering cheap food to easy transport facilities. This promotes better collaboration and faculties go to their workshops, fests, research, etc.
Culture: Bhubaneswar is a kind of metropolitan and people from all over the country can be found here so there isn’t much language problem and no cultural gap when it comes to food, festivals, or movies.
Connectivity: AIIMS Bhubaneswar obviously provides better connectivity than AIIMS Rishikesh. Rishikesh has both rail and air but the speed and efficiency is much better at Bhubaneswar. This directly affects the patient inflow.
Coaching Centre: Bhubaneswar with its high-pitched city life also has the best coaching institutes like DAMS and Bhatia.
However, the quality of education offered and the opportunities available are somewhat similar in both the AIIMS and I refuse to comment on that. The main deciding factor should be the kind of lifestyle that suits you.