This is a very popular question in Chinese website, and I hope to know the answer in the western world
I would choose my wife. I think God expects me to care for her as myself as we are one.
Also, if I saved my mother she would never forgive me of letting my wife die.... she was just like that. If my daughter saved me instead of my grandchild's father I'd give her hell the rest of her life. I think most of the people I know would do the same.
A marriage is a bond that transcends everything but a relationship with God. that's the way I was raised
There is an ancient Chinese folklore:
In a very poor family ,the grandmother loved the grandson so much, she always gave her own food to her grandson,the son was very worry about it and feel so sorry to his mother,and he said to his wife:
“we have only one mother but we can have many kids,so let us kill this son ,and our mother can live better”,his wife agreed.
When they tried to kill the son, suddenly they got some gold form god, this was for praising their good deed ,and both their son and their mother survived and had the good life.
So familiar with Abraham’s story? Yes,this story is as important as the story Abraham sacrificed his son in Christian to the Chinese traditional culture,and is representative the most great moral code in china for thousand years
Search “郭巨埋儿”and let goggle translate for y
Another story :
A descendant of emperor was in exile,and had the rest in a poor family,the family was so poor and the man could not submit the good food for the descendant of emperor, so he killed his wife and gave her flesh to the descendant of emperor, to eat.