Seems like Asian female and Caucasian male couples are accepted more than any other mix. In the NY Times travel magazine last week, there was an ad for a resort or something, and an Asian woman was in the ad with her Caucasian husband and their two kids. This is not the first time I have seen Asian female and Caucasian male couples in ads. It seems the "in" thing for advertisers.
It certainly seems that way... I can think of so many ads off of the top of my head that feature Caucasian male/Asian female couples including Kaiser Permanente Health Insurance, Behr Paint, etc., etc. I rarely see the reverse, however.