This question does not have a definite answer. It totally depends upon your interest and what field you want to enter into. If you want to consider a career in finance you should choose finance because the very basics of the industry are taught in the subjects of Finance which help a lot, while on the other hand if you are more of an advertising and marketing enthusiast you should go for BMS(Marketing)

If you are considering jobs as a criteria to make your decision then I would say that you will get plenty of jobs in both the fields. Companies visit campuses looking for people with both kinds of profiles.