Among the above institutes, ABV-IIIT Gwalior is definitely the best choice for pursuing Computer Science.

The table below gives a brief comparison among the institutes.

Key highlights:

• IIITM Gwalior is the first IIIT to be established in India, thus having its own good reputation over the years.
• The campus is large (over 160 acres) consisting of a football ground, a cricket ground, a volleyball ground, a sports complex, a hospital, an academic block, an open-air theatre, and a lot of other things inside.
• It has a much better infrastructure than IIIT Sonepat.
• All faculties in IIIT Gwalior have a Ph.D., which is the minimum qualification. This makes it evident that the teaching capabilities are quite good.
• Placements are exceptionally well in IIIT Gwalior, with the highest package being 28 LPA to date.

So, IIITM Gwalior is the definite choice among the three IIITs mentioned, considering the overall facilities, placement, and infrastructure.