I have never been attracted to anything other than Caucasians. I'm one of those weird people that are not attracted to their own nationality and/or race and it's been like that for the longest time. I am however am not full Asian. I am 3/4 Asian (Filipino and Spanish) and 1/4 German. Maybe that 1/4 German side of me is just way too strong even though it failed me genetically by not being whiter. XD
I would probably pic the same nationality just because I am more attracted to the physical attributes, but if I were physically attracted to a woman of another nationality, then yes, I would go for it.
I would not want one vs the other. However, it would be cool to talk to a foreigner because everyone likes the new thing. But for dating, unless we had similar views I wouldn't date just because... or be drawn to him just because