I don't think the migration to the 320 is necessarily by choice - especially in the SW bases like LAX - I have been losing seniority for 2 years now - from top 20% down to bottom lineholder/reserve. Hate going to school - epseciallly MSP in the winter - but commuting to reserve is even worse - glad lots of guys are moving up - just not me. You know, it's supposed to get better after 10+ years - although I'm flying with 20+ year Captains in the same boat - oh well - hopefully new hires will push up from the bottom.