i again agree with Flaps. 20 numbers DOES make a difference of living in base or commuting, reserve or holding a line, better scheduled days off or working holidays. 1 number below me has to commute 1 more month. He spends $500 extra money per month because of his commute. If he was on here he'd rip you a new one about seniority.
Do what's best for you. Just don't complain on here months from now when you don't get the base you want or the schedule.