I always swallow, if I can, and would lick the cum from my wife, if I could. I have had Black men, Arabic men, Hispanic men, and white guys cum in my mouth, as well as other places. Some cum a little, some cum a lot.
Black men's cum tastes the best to me, a salty sweet kind of flavor, while white cum is bitter. The others have been kind of non-descript, though Arab men seem to have more fluid in theirs, to me at least.