I'm white, but I'm not attracted to white girls.
I wonder if that makes me abnormal?
I have only had sex with Asian and African or African-American girls.
So I can't really compare having sex with a black girl to having sex with a white girl.
As far as Asian girls go, they vary a lot. Filippinas are the most submissive and most eager to please, Thai girls are the kinkiest, in my expirience. Japanese girls I have been with have been have had the longest orgasms, the first time I was with a Japanese girl I reckoned she must have been bullshitting me.
As far as black girls go, I would describe the sex as 'normal' if there is such a thing. The last black girl I was with was not very adventurous, stickler in the missionary.