LAX is junior for FOs, but senior for CAs. OAK is generally the most junior for CAs and FOs. BLI, as said, the bottom 2 FOs are revolving door and upgrade is the retirement rate, the CAs don't leave. They covered LAS pretty well. IWA is slated for big growth, so will become more junior, but it's still pretty senior for both seats right now. PIT, CVG, and probably IND too are 50-50, half very senior, half very junior. PIT is the most junior of the two for now. CVG has a lot of locals who aren't going anywhere, so it's getting more senior. AVL has gotten more junior, probably on par with CVG. SFB has the same issue as LAS where 80 pilots are senior but seat locked, and will keep bumping junior Bus people back as they transition. PIE is a little less senior than IWA, but still about a year to hold a line. FLL tends to be a transient base, so it changes lot, but generally more senior than PGD. PGD will stay junior because no one wants to live there if they're under 60, and it's also slated for big growth.
CURRENTLY, upgrade is running a year on the 80 for any base. OAK is about 1.5, PGD, PIT, FLL about 1.5-2. The other AB bases 3+. IWA and LAX probably around 5. LAS is a moving target during transition, but so far is super senior for CAs and super junior for FOs. BLI will be forever to upgrade.
Reserves get 12 days off except for I think 3 months a year when you get 10. Line holders generally get 14+ days off, and it's easy to get 16+ if you bid high credit trips. We don't really have the isolated days off as much on the AB. I think the 80 still does, especially in LAS.