Assuming that by other colleges you mean random Non- DU college, here is my answer.
Delhi University has the highest cutoffs since decades and the crowd that DU attracts for the top courses and similarly top notch.
Not only DU professor’s are tier 1 grads, the society and crowd exposure is great. Being in an govt college also saves a lot of money in your graduation, adding to this, the alumni that DU has created is the best by a mile.