In comparison to the IIMs, FMS retains the advantages of small batch size and a fee structure that is relatively low. The small batch size simplifies placements significantly. With the exception of a few foreign consultancies, most of the top companies that visit the IIMs also visit FMS. Despite all of the university's bureaucracy, etc., there is a well-established alumni network that still ensures that things work out for the current batches.

Because of the small batch size, people are extremely competitive. This was in stark contrast to what you hear about the IIMs. Even though they have competition but they maintain some semblance of sanity due to the large batch. FMS can be difficult to manage at times, both in obvious behaviours and subtle actions by people you study with.

The culture at FMS is influenced by the culture of Delhi. In comparison, IIMs are unquestionably more cosmopolitan. Unless you have prior exposure, adjusting to a new environment can be difficult for people from very different cultures, such as the South or East. Otherwise, you'll have to learn to adjust the hard way. But it's still worth the effort. The people you meet in both locations are of the highest calibre. It is up to you to make the best of the situation.

Even if given the chance, there's no way one would like to trade places with the IIMs.