Pay is theoretically equal so it depends on how they build the schedules. Will they build the east-west full of 24 hour overnights on the east coast and SFO - 10 days off for everybody? Will they fill the north-south with 14 hour 2 days - 84 hours credit for 6 days of work anybody?
Anyway, it's about where you balance pay and qol...for 90% of pilots, especially in the AS/VX system, where you fly is irrelevant.