Do New Yorkers really think they live in the best city in the world? Because LA is so warm, has so many outdoor activities, and celebrities. Why would someone like NYC over LA?

Yea and all those nice street gangs.

https://en.wikipedia.org/wiki/List_of_criminal_gangs_in_Los_Angeles

New Yorker usually are from small town, native new yorker are sick of everything, the traffic and the new comers especially.

NYC? LA? You're not looking far enough. I live in the best city in the world -- a city of the future. And why? Because it's already tomorrow in Sydney.

I lived in and around (mainly around) LA, I loved it, but you are aware of a slight lack of "culture" when compared to NY, London, Paris etc. (Can't speak for Sydney, never made it there).

But as I said, still love the place....