First time I've every thought of this... I never had a black prof. White American, Indian, Arab, Jew, Egyptian, Sri Lankan, Chinese, Puetro Rican, European, Left, Right, Male, Female... No Blacks.
The best was an Indian, but the worst was also an Indian.
And just in case you're wondering, I studied Computer Science at the Univ. of Maryland, and I'm finishing a second degree in Criminal Justice.
Let's see... I had a black math instructor my freshman year... she was no more or less boring than my other math instructors.... had a black African-American Lit prof, he was great, really inspiring, didn't make whites uncomfortable... had an Indian prof teach me Shakespeare, one of the best profs I had as an undergrad... had a strangely TALL Philippina teach women's lit, she just made us read all her buddies from her Ph.D. graduating class in Creative Writing, which ticked me off to no end... all my other profs have been white, bout half and half for male/female... I've noticed no particular pattern. I guess my conclusion would be that their color has nothing to do with the quality of their teaching.