The individual and their character, attributes and culture are all that matters. Race is a matter of complete indifference to me except as it is associated with those things. In other words it's more difficult to date some people because their culture is so different they are hard to read.
For example I was doing business with a young Japanese woman once who was very attractive but it was impossible for me to tell if she had any interest in me at all. She used to stand so close to me she was practically in my pocket if a European or American girl did that I'd take it as a pretty clear sign of interest but for all I know that's just what Japanese people do.
I'm Arab, my ex was half Italian half Latino. Mmmm I don't know I really like all races so this is a hard question. Lately I have seen many hot black dudes, so maybe black? But I also find white and Asian dudes hot.