I think our preferences are more dependent on us being hung than a potential partner's race. I'm a short, skinny white boy who happens to be pretty hung, and every woman I go after is very surprised saying "Normally only black guys hit on me!". What can I say though, I love wide thighs, thick legs and a big bubble booty. White, black, latin, I don't care. IMO the big dicks gravitate towards thick bodies and big asses because the men who aren't so endowed are intimidated by that and instead go for the small, tight ass. Like attracts like I think.
The reactions I get from women to my size is always the same too. 1) total shock or 2) "I always thought you skinny guys were packing the most meat!"
Just my theory ...