It is suggested that you go for Sri Venkateswara College (SVC) or Sri Guru Gobind Singh College of Commerce (SGGSCC), as both colleges are famous for their commerce department. 

They have the best, most experienced faculty with some professors having 15-20 years of educational experience. You will have opportunities to take part in extracurricular activities through clubs and societies. SVC also has the best placement opportunities and has the advantage of being in Satya Niketan, the best college of south campus.

Therefore, your first choice or preference should be either SVC or SGGSCC, followed by Ramjas college.