Virgin America serve LAX quite well, and give a very good points return for short-hall flights. Status perks aren't so good as the mainstream airlines, but the basic quality of service is better IMO, so they balance out. If you're not going to be able to make it to a high loyalty level in UA/AA/Alaska, you may wish to consider them. Of course, some are speculating that they're in trouble and may collapse as an airline. I guess we'll just see.