PMCH Patna is a great college established in 1925 and is a most developed college and if we see AIIMs Patna as it is one of AIIMs colleges than it is definitely in top College. But both colleges are best comparing both of them is tough .

But in today's date choosing AIIMS will be kind of slightly better caused it is more modernised as compared to PCMH with latest technologies. And more government facility but there is no reserved quota in AIIMs. But you can't underrate PCMH .