It's very difficult to say which country has the best MCI result because there are many factors that are involved in this and not just the FMGE tally given by the Government of India 2012–14 & 2016–18.
Note- If you want to choose according to the passing percentage of FMGE EXAM, it's better to check the Individual university’s FMGE Passing ratio.
I would like to finish with a piece of personal information that will be of great help for all Medical students wishing to pursue MBBS from Abroad
These all criteria should be fulfilled by the university, If you find such university that means you have reached the best place