Generally for almost all races/ "ethnicities" theres in-group preference over all others but interacially whites are by far the most common ideal (58% of nonwhites prefer whites) followed by latinos (31%) and blacks in third place (13%). It should be noted that especially asian women tend to go for those of another race, 40% of Asians (with racial preference) excluded their own race from their preference while 65% of white and 45% of black women included only their own race.
However if you wanted to know about certain features Im too lazy to look that up and I think it all comes down to how well they fit into the whole