According to one of my seniors, if the parameters of placement and college life are considered then the ranking would be as follows: -
Dayanand Sagar College> B.I.T> BMSIT and RNSIT
My senior is a student of B.I.T and he has also been to Dayanand Sagar College a couple of times for some cultural events.
B.I.T is located in V.V Puram and lacks all these facilities. In terms of placement Dayanand Sagar College is at a par with B.I.T however RNSIT and BMSIT both lag behind these institutes in terms of campus life and placement stats, records.