I think its a matter of personal preference. I generally avoid white women and favour Asian and Indian. As for black girls, I've had a few years ago, all from Kenya and very beautiful, tall, slim and good faces. Nowadays I like to punt with Thai/Chinese when I'm able.
In August in BKK I met a slim black WG from Rhodesia [her term, not mine] and she was beautiful, well formed and as black as 'Newgate's Knocker.' I was tempted too but I had a bint on the go and stepped back from the edge, even if I did buy her a drink.
I agree with what has been said about black girls; a good percentage would never appeal to white men but their own ethnicity find them attractive. Nothing racist there, just natural selection as per Mendel's Peas experiment or that with Drosophila Melagoster .... the offspring may well be significantly better than the parent sample - hence attraction to mixed race women, always very attractive in my opinion. An example of that being the nurse 'Corinne' in Cuffs who is also the WG who 'deals' with the DI Felix and his need for BDSM -- she's a stunner. Other's may not think so.
But big arses, massive tits and thighs with lots of blubber, corn rows etc do nothing for me but black men seem to like them - it's their choice.