Best City To Live in is...

What's your guys' opinion? Where is the best city to live in and why? Of course it depends on a ton of stuff: age, job, preference, etc...

Mine is London but that's biased af because I spend most of my time there, if I visited NYC I'm pretty sure it would take the number one spot for me because of my fetish for tall buildings and London just doesn't seem to have that many (despite being the capital). Do you guys think it is better to grow up in a big metropolitan city? Or does it make any difference at all?