I got hired into the 756 back in June. If you live in the Newark area it's in my opinion the best choice its a great plane. However your going to be junior for a long time. I live west coast but haven't been able to get out of Newark till just recently. As of right now I would say the 737 will give you most base options with best quality of life. I would be a line holder right now in both LAX or SFO on it.