OAK is like IND and EWR, major operations but no crew base.
LAX is a MD10/11 crew base, primarily due to the ease of DHing a crew to PAC Rim and back. I don't work for FDX, but those I have talked to say that it will take several years on the seniority list to get based in LAX due to the wide body pay of the MD fleet. With the FDAs, I think it will be even more so shortly.