The List!

LA
Sunny
Film opportunities
Warm (k already said that.....)
I could get a tan (not quite the same)
Take classes
See some old friends
Family/friends would visit cuz of weather (k weather is being overdone here)

NYC

A bigger Chicago, which I can handle
Get into the comedy scene
See old friends
Broadway shows
Shorter drive home/cheaper flight home
More live show opportunities
Um...SNL!
Brent might get Phd here

I'm sure I'll think of more