So in terms of flexibility, Cambridge. Tons of companies will preferentially snatch up candidates with prestigious advanced degrees, and many of them will even pay you more. Heck, no one will care if you drop out of your advanced education halfway through. It's easier to go academia -> corporate than the reverse, unless you make a ton of money.

So in terms of long-term money, the question is the oldest one in economics: when is the next market crash? There's two conflicting narratives right now. One is that new AI technologies are going to take a handful of companies to the moon. The other is that these companies are engaged in an incestuous network of investments and the whole thing is about to come crashing down.

If the former is true, or even just a normal economy, the fastest way to make money long-term is to make a lot short-term while living like a monk and investing.

If the latter is true, all the stock you purchase/are granted in the next couple years will lose a big chunk of its value, and you will spend years just getting back to even, so you might as well wait a couple of years and jump in after the next crash.