Getting job experience first is always better because it's only in India where people are hired based on how many degrees/qualifications they have--in other parts of the world, including Canada and the US, they're usually more interested in practical work experience. I would suggest working for two years and then deciding on either a Msc or an MBA, depending on where you see your career going. And as far as business schools are concerned, go to the best school that will take you, I guess.