There are subtle things to consider also:
How many positioning sectors do you do/ year? Are they counted in the 900/750? In what cabin?
many transits by road?
pension contributions?
LOL?
Private health?
Training vacancies ( if that’s your bag)
Staff travel VS much better
Ease of commute ( I’d much rather be BA if living ion mainland Europe)
I could go on it’s not easy best of luck.