Very well put together and informative. You put lots of hard work into this. One thing you need to be wary of is that bonuses are taxed at almost 50%... Yes, I know this is just a gross salary graph, but you might want to consider the "bonus-factor" for each airline. Example- Endeavor pays $23k for 3 years(I think). That's $69k out of your $158k. That's 44% of your salary due to bonuses... So your take-home before normal taxes is really only around ~$125k. Granted, Endeavor still comes out on top, but just something to consider.
(Unbiased ACMI guy here)