BSc (Hons.) at Delhi University and Doon University have several pros and cons in themselves. Both are esteemed institutions, with some differences in the campus environment, facilities provided, etc. The points below are a quick comparison in several matters related to the institutes.

Faculty:

• Delhi University has an excellent faculty base when compared to Doon University. Teachers in Delhi University are mostly Ph.D. holders and are having years of experience. 
• In Doon University, professors are mostly quite inexperienced. Even professors of Doon University teach irrelevant topics that are of no use in the current industrial standards. There are few good teachers at Doon University, but the count is quite less in number.

Peers:

• In Doon University, the surrounding peers are generally found non-serious and time-wasting wards. The reason behind this type of student base is the simple admission test, which is quite easy to pass.
• Most students at Doon University are found to waste their valuable time on useless stuff. But, there are quite a few exceptions where students are found to be serious at Doon University too.
• Students in Delhi University are some of the most serious students in Delhi, where there is a good peer-to-peer learning opportunity. Students here are found to be serious about their future, preparing for government exams or higher studies.

Environment:

• When it comes to the environment, Doon University is a clear winner. The campus of Doon University is covered with lush greenery and ample nature all around.
• There is almost no traffic near Doon University, thus causing no air or noise pollution.
• The North Campus of Delhi University is situated in an extremely polluted place, with no greenery inside the campus.

Competitive Exams and Placement:

• At Doon University, there is an excellent peaceful atmosphere and ample time for preparation of competitive exams like UPSC, SSC, or CDS. For exams related to higher study like JAM, GATE, etc, Doon University is a good option. 
• For placements, Delhi University is the right choice. There is no separate placement cell for B.Sc in Doon University. Students from Doon University need to sit for pool placement that takes place in nearby universities.

Considering laboratories and other facilities, Delhi University is on a slightly higher side. Overall, for students interested in higher studies or government job-related exams, Doon University is a good option. But for students looking after a good placement, peers, faculty, and city-life, Delhi University is definitely a better option. Considering research-related works, both the universities are not suitable in this regard.