Define "crap". For that matter, define "Los Angeles"... there's city and county.
If you're talking about city, LA does not need anything else to look like crap, they do a fine job doing that to themselves - especially certain pockets downtown.
If you're talking about LA County, remember Bel Air is "Los Angeles" and that's a very nice area that can't be matched by anything in Orange County. Newport and immediate surrounding areas get close... but the vibe is very different. And if you're talking LA County (since you called out Orange County), Beverly Hills is in LA County, too...
So... if you are clearer in defining the geography, we might provide you a more useful response.