LA. For these reasons:

1) Weather is unbeatable
2) They both have fine girls, but la has more of them, they're everywhere!, I've lived in la and ny so I can make this comparison
3) Anything and everything about car parts is in cali, from parts to cars cali has it first and socal has the best car scene in this country
4) you can go to the beach and/or up a mountain to go snowboarding both in one day
5) Since your into media productions.....I mean where else is better to be than 30min from hollywood