Data from OKCupid and other dating sites has comprehensively exploded the myth of superior black sexual attractiveness to women of white and other races. But in addition to statistical data, there is also simple anecdotal observation.
Today I was walking along the sidewalk and saw an effective ruin of a woman, white, and somewhere between the ages of 60 and 70. She was taking the "mutton dressed as lamb" routine to new depths, as she was wearing brown leather trousers, and she also happened to be walking with her arm tightly wound around her paramour, who was a black man in his mid-twenties, dressed in full B-Boy style with the high, straight-rimmed ball cap.
He appeared to be equally enamored of his aged love interest, and far be it from me to criticize a happy May-December romance; if they find mutual satisfaction in their relationship, then it is no concern of either yours or mine. My point is not to criticize their relationship, merely to observe the fact of its existence.
The point of the observation is that one does not often see men of other races in their mid-twenties paired with black women in their sixties. Indeed, I can honestly say that not only have I never seen it, I have never even heard of it. Which tends to indicate, if only in an anecdotal sense, that African ethnicity tends to be viewed as a sub-optimal attractor, not a super-optimal one, by the average individual.