University comparison Watch
filtering by UK
Imperial College London - Imperial College Business School
The University of Nottingham - Nottingham University Business School
Kingston University London - Kingston Business School
Robert Gordon University, Aberdeen
So both of your choices are not in one of the UK's top five lists for your MSc, but as always, these reputation lists are not as important as how you perceive the places.
check again each of your two universities course's detailed agenda for your year of study; which course when examined in extremely fine detail, module by module, will cover areas that more appeal to you? That is more important than 'ranking'
But let's look at a 'ranking' measure https://www.topuniversities.com/univ...rsity/postgrad
QS Global World Ranking #571-580
Average Fees (USD) 10K-12K
Research Output High
Total Students 27,991
Graduate Employability Ranking #251-300
QS Global World Ranking #96
Research Output Very High
Total Students 23,197
Graduate Employability Ranking #111-120
So according to 'topuniversities' Southampton is about double in terms of graduate empolyability, but there are so many things wrong with this,
you are looking at postgraduate employability for starters, and seriously the most important thing is your own individual analysis of the fine detail of which course modules that you prefer!