KCL vs SOAS Diplomacy/international affairs MA? which one to choose?

Hi there
I just finished my first degree in Vienna, Austria and I'm about to enroll to long distance MA in London to fulfill my lifelong dream of becoming a diplomat.
I would like to pursue a career in the UN, with the hope to eventually work as my country's ambassador. Also, I wouldn't mind gaining expertise knowledge in international peace and security issues, as that is the big field of my interest and was a big part of the research I've been working so far on.
In order to achieve these goals, I applied for:
SOAS- Global diplomacy MA
KCL - International affairs MA, with specializations in cyber security or espionage and surveillance
KCL - International relations and contemporary war MA
Queen Mary - IR

Now that I got offers from all the programs I applied for, I need your help to decide between SOAS and KCL! Does anyone have any good advice/ personal experience to share?? Should it be hard to pursue a career in diplomacy after finishing the International affairs at KCL? Is SOAS the safer choice? I really have a problem with deciding between the two, and considering the money I am about to invest, I would like to make sure I made a good choice for my future.

Thank you all in advance