Hi,

If you are keen on the IIT tag, go for IIT mandi. Even  though it is new, it is  still an "IIT". Passing out from IIT itself  labels you as one of the top brains in the country. You become a "BRAND" regardless of how new or old the IIT is. Secondly don't be influenced by the current reviews about the new IITs. By the time you graduate, conditions would be much better. After all there was a time when IIT-B, IIT-D and IIT-KGP were new.

I completely agree that IIIT-H has more value in the industry, but personal satisfaction is also important. If the IIT tag gives you this satisfaction, without any doubt join IIT. 

But if market value of your institute gives you satisfaction, then join IIIT.