Hello dear aspirant

The choice of college depends on your interest, if you are interested in B.Tech, then you should obviously opt for DTU whereas if you are interested in pure science or arts courses like B.Sc Or B.A. you should opt for DU.

Since B.Tech can give you a direct job after your 4 year course,  you should opt for B.Tech from DTU.

Because DTU has a very huge campus and a good social life.

So at the end, i will suggest you to go for DTU.

Hope I am clear.