I can really only give you some information relevant to Atlantic
A week can vary substatially exepect short sectors avg proberly 3 a night long duty close to max fdp evey duty.. With a stopover at the end
Roster as i said can be very up and down expect frequent plot changes with min days off per month there is no roster pattern and sometimes a new roster wont be issued until a few days before the current one finishes
As far as i m aware there are some significant differences between wal and aa i cant really comment too much as not totally sure
Atlantic airlines in a year expect 300-400 hours ( most likely the lower end of that figure)
Again pay is for atlantic and in euros would be around 2200-2500 euro
Medical is not payed for and no LOL scheme as far as i am aware maybe different for wal...atlantic has a pension scheme but i am not familier with it
Hotels are provided while downroute And breakfast is included
I must stress this information is really only for Atlantic airlines and some things in wal will differ for eg the pay is significantly higher
Hope this helps
Ps excuse grammer written on phone!