My brother was in the same fix a few years back. After considering various factors he chose IIITM. Here are some of the reasons why he opted for IIITM.

• DAIICT offers ICT and ICT with minors in Computational Science. Almost 40% of the syllabus is basically Communication. The syllabus will be a combination of ECE and IT. If you are sure about Communication then don’t choose DAIICT. 
• While choosing try to factor in the location too. DAIICT is situated in Gandhinagar, which is far away from our city. So, it was a point of consideration for my brother.
• DAIICT is private and changes more fees. 

Here’s what you should know about the placements and fee structure of the three institutes. 

Last but not the least, do not keep faculty as one of your deciding factors. This can be hugely misleading. Visit the official websites of the institutes, weigh in the factors important for you, and choose accordingly. Both these institutes have their advantages.