KCL vs UCL vs Manchester for Masters

Hi! I've received offers from Kings, Manchester, and UCL. All programs are either International Political Economy or International Public Policy. Im from the US so haven't had a chance to meet many people from any of the schools to get a vibe. My brain is telling me to go for Kings or UCL because of rankings and global reputation, but most of the British people I know prefer Manchester to London. I did study abroad in London for a bit and loved us but this seems way more serious as I plan to start my career in the UK. Any opinions/tips would be appreciated