I am biased to UAL as I am there , but the west coast in general is very junior , LAX or SFO have tons of flying (right now SFO is hurt because of lack of Asia but that will come Back at some point. You can stick to NB or flying the 787/777 very soon if that does it for ya .

the tough part is making a choice based off data you know today , that can change greatly in a few years , either way great choices to have congrats !