I'd definitely say London, purely for that fact that it has many of the same things that make Silicon Valley so appealing: a (relatively) thriving tech communi

I'd definitely say London, purely for that fact that it has many of the same things that make Silicon Valley so appealing: a (relatively) thriving tech community, especially around the Old St area, it's close to VCs, there's lots of networking events, conferences, etc. Only downside is cost of living, which has frankly been overemphasized here. NY is just as expensive, and theres a pretty sweet scene there... London for sure.