well,its is very tough to answer because unless you face some problem with broker you will not be able to decide who is better.
you will get better answer ...if you are able to ask specific
question.s ..like ...are you willing to go for short selling,what type of trasaction are you going to make ...online ..or offline....and how do you want to transfer money ...online or through cheques...etc factors are essential to take into consideration apart from charges of brokerages with the type of security you trade.
you will find lot of information in this forum regarding many of the above said things....hope you will take time and go through it carefully.
happy trading ..
suba