Unless you want to fly to Portland or Seattle AS does nothing to address west coast travel.
Actually...
http://en.wikipedia.org/wiki/Los_Ang...tional_Airport
United Airlines operates to the most destinations (61), followed by American Airlines (34), and then Alaska Airlines/Horizon (29).
A lot of AS/QX's traffic via LAX is to secondary airports (MFR, EUG, ACV, RNO, STS) and MX, but it's got some feed to places other than PDX and SEA- YVR, ANC seasonally. I also have to wonder if this will expand as the DL/AS partnership expands- for instance, AS is expanding their operations at SJC, and DL had bupkus in the way of feed from the Bay Area to LAX that doesn't route through SLC. I'd think an SJC-LAX codeshare on QX could work for both airlines.