> I will advise that you pick the one that seems to generate the most passion in you, not in the follow your passion sense, but more of the fact that there will be HARD times ahead when solving HARD problems and only the love of finding the solution is gonna take you through it.

This is useful and not always talked about.

Whatever you choose you're going to have to deal with crap you don't like: where are you more willing to put up with it?

Also related to this: think about which process (daily grind, slog…) you prefer. Not just the end goal/success.