hi sig, I am an american and I cannot recommend you coming here especially because you have an offer from a US carrier. If you were
out of a job that is one thing but... after much reflection and time past,
I have realized that I have left the best country in the world in my opinion and and am now working hard to get back under some type of reasonable pay level. Most americans can never truly appreciate our home until after we have left. Just my 2 cents, take it for what it is worth. I lurk on this site all the time but rarely post, I just feel obligated to give you my 2 cents since you requested it and I am really feeling quite wistful about my homeland during another holiday spent far far away.
after a few years here you will get over the widebody international thing and then this will just become another job in a place which can be tough to live in at times. merry christmas and happy new year.