Hey,

Well it totally depends on you what course you want to pursue and find your interest in as these two courses are totally different in nature. Bcom hons deals with your accounting things whereas bms is more into management. Also pursuing bcom hons from any college of du will not affect your part of education level. It hardly matters which college are you from. The faculty is almost same and at the end will provide you the same degree after graduation. So even  motilal nehru isn't bad to pursue bcom hons. 

So it depends on you and your choice  course you want to pursue. 

Hope this helps.