I think some 73N LAX spots went unfilled on the last AE. Guys in my class had the option for LAX a week after finishing INDOC. I'm not sure of the 7ER. If you want west coast, and have the option, I would guess 73N is your best bet right now. We're taking deliver of two 737s a month and slowly parking the 7ER. Unless you have a dream of having flown the ER, I'd opt for the 73.