This may, indeed, be all you care about now (or forever)... but my suspicion is that many people asking this same question would do well to think a little deeper about what they should choose. Consider the 1-3 outlook in addition to the 3-6 month near rocks. The volume and pace of movement in every newbie category is immense. Where you sit WRT seniority in the END of your first year (and second/third if you don't care to burn another month retraining in Atlanta) could vary A LOT between categories. Quality of life / schedule control / days at home / line vs. reserve / commutability and even pay could vary widely based on what those of you with a choice pick. If you can reach out to any NEW pilots you know (hired in last year), they're probably the best ones to shed light on what the first year will look like in a category. For many of them, it didn't even turn out to be what they had suspected in indoc.

With so much movement and variance between fleets, the bottom number ("most junior") or "quickest to base xyz" variables may lead you astray from what would actually make you and your family the happiest in years 1~3. I wish it weren't so complicated, but at least you've got options!