It is recommended that you choose a national institute such as AIIMS. When deciding between Bhopal and Raipur, it is recommended that Raipur be chosen over Bhopal.
If you live in Odisha, Raipur appears to be a good option (though many would argue that Bhopal is better connected), followed by BBSR.Bhopal was previously thought to be the top AIIMS after Delhi, but with time, it has been discovered that there isn't much difference between the newer AIIMS; in fact, news of chronic faculty shortages has surfaced at Bhopal. Raipur, on the other hand, has shown consistent progress in almost all arenas—academic and otherwise. The only reason Raipur isn't a top choice is that people perceive Chhattisgarh as a Naxal state that is backward in comparison to others, which is absurd.
If you are offered a seat at AIIMS BBSR, you should take it. If not, you should definitely consider AIIMS Raipur.