3 reasons why BSE is better than NSE for retail investors

 By no means am I a fan of the BSE-I consider it as an old boys club which was dragged to the technology age kicking and screaming after the entry of NSE. However, sometimes things change, and then one needs to revise the views. The reasons are explained below

1. Less co-location, so more parity for retail investors As per the SEBI discussion paper on co-location, the BSE had much less co-location orders as compared to NSE. What is means for you as a retail investor is that when you see an arbitrage and try to execute, you are not too much disadvantaged against a server http://www.sebi.gov.in/cms/sebi_data/attachdocs/1367581007462.pdf
2.  Excellent stock price page with easily accessible filings:-BSEIndia gives you the PDFs while NSE gives you the zip file of annual report/other filings. Also, BSE beats NSE hands down here.
3. Easily searchable stock news filings page:-Try searching company announcements on both NSE and BSE, you'll see my point.

Given that your broker would route the order to BSE/NSE depending on their costs/best price route etc, you'll have little control on who gets your business. However, do keep it in mind.