Hello aspirant, 

It is highly advisable for you to take VIT instead of new IIITs. VIT has ranked better than most of the NITs in the NIRF rankings. VITs academics is also very flexible. The issue with new IIITs will be poor infrastructure, very poor alumni network, poor placements, not-so-good faculty, average competition among peers, poor extra cocurricular activities and lot more. New IIITs will have only the brand name to offer, nothing else. So it is not advisable to prefer IIITS.