To me, it doesn't really matter much. I might have my preferences, but that doesn't mean they won't change with... time and/or experience? *shrug*

As long as I like the person, I don't think it matters. My ex was a Japanese guy - some of the people I know didn't like that. My mum is going out with a black guy, and I know not many people like it. If a couple with different ethnicities can be as happy as a couple with the same ethnic background, then hey - go for it.

You can't help who you fall for. It just happens.