Which college is better for an MBA in Marketing - JBIMS, SP JAIN or MDI Gurgaon in all various aspects and I have converted all three?

My personal preference is MDI Gurgaon among all the colleges you have mentioned. This institute excels in many aspects when compared to other B Schools. 

Placements: Placements at MDI Gurgaon are much better than JBIMS and SP Jain. The table below has proven the same through statistics.

Faculty: Without any doubt, MDI Gurgaon has the best faculty in the whole of India. It comprises the most learned personalities in the industry. It has around 80 nationally and internationally acclaimed faculty.

Corporate talks: Owing to its location in a metro city, MDI has a lot of corporate talks that are way ahead of normal guest lectures and add to the overall experience of the students. You may even find MD/CXO level folks from Deloitte/ColPal visiting and giving Corporate talks.

Clubs: MDI runs its own Mutual Fund Unnati where students get to learn the tactics of investing in stocks. Illumina is a rural marketing research concept where students get to learn consumer behavior first hand.

Exchange Program: The highlight of MDI Gurgaon is its exchange program is the best in the country. MDI has partnered with several foreign countries and students have to choose from them. MDI’s PGPIM program gives you a dual degree with 1 year in MDI and 1 year with ESCP Europe among various other options. Students completed their internships in European countries and secured International Job offers and settled abroad after this program.

All these major factors are more than enough to convince you against joining other B Schools if you have converted MDI Gurgaon. I have seen many students forgoing offers even from IIM Kozhikode and IIM Indore just for MDI Gurgaon.