Funky
I don't want to get into the money side of things cause 404 will argue with me;-) Basically, if you are happy doing a job then the salary is secondary...if you hate the job, no amount of money is enough.
Jet lag....hmm...you have kids? Same feeling. You learn to grab sleep when you can. When I was just long haul I loved it...I had a young child, so had masses of time off to spend with her. She wasn't the worlds best sleeper so suddenly being paid to go to sleep for 4-5hrs seemed like money for jam!
Some of peers abhor long haul....some love it. Just depends on your own attitude to life. I much prefer 4man long haul to 3man oz flights as you get a decent amount of time off.
I am sure you take everything you read here with a grain of salt. Lots of whingeing but very few feet moving! For all its faults CX is still a pretty good outfit to work for.