If you go by nirf ranking then you find that vnit is the highest ranked institute of the three with a rank of 30 while manit and svnit and lower ranked than it all three of them are institutes of national importance but yes talking about ece branch vnit nagpur may have an edge as it near to the it hub and big cities like bombay so companies do not face any problem in recruiting from here talking about stats then at manit the highest package was 44 lakhs ad for vnit it was 38 lakhs for svnit it was 40 lakhs so according to placements stats manit is a good say  as well regarding coding competition and other factors the best choice is manit ece there by vnit and then svnit so choose wisely also don't go on nirf ranking as they do not tell the real story of the college.