I have recieved offers from Cass and Manchester for Ms in finance programm. Need advise regarding which one to choose both in terms of career prospectives and quality of the course.

I can assure you that MSc finance kids at LSE does not apply for Ops....as a good % of the students are already experienced traders or asset managers....alot of people on the MSc finance course got an internship this year.....given that most of the graduate job are nonexistence...

I'd say CASS over Manchester. The course content is highly practical, you're in London and there are loads of arabs.
That spells awesome in my book.

Manchester's finance department is one of the best in the country, the student life is amazing, and the business school is well regarded. However, if u really wanna make an impact, and have a foot in the door, u have to go to LSE, Oxbridge, HEC or smth similar. Personally, as i have an undergrad form Manchester, I will go for CASS. There is no much difference between the to unis, so at the end, the work experience and networking will be the two most important factors, defining your career prospects.