I'd be interested in hearing from a SWA guy on how their relative seniority affects trip quality. Do senior guys get day turns worth 8 hours? Are junior guys resigned to 10 leg 3-day trips? Are they all 3 day trips, or a mix of 1, 2, 3, 4 days?
At AA at least, the senior-most nb domestic trips are typically day turns worth 7 to 8 hours, with those going West (like DFW-SEA) being preferred to DFW-LGA. We have guys that have been on the MD-80 for 20 years and do nothing but the same sequence, forever and ever. They know every frequency between DFW and SEA! There's a lot to be said for comfortable routine.