America as a whole, Gay people get more persecution because of Christianity. Most Christians(not counting some Southerns like my grandparents) view African Americans as their equals. Gays, however, are viewed by many Christians almost as a disease. It is really bad how gays are treated.
This week, one of my friend's brother was killed in Iraq. He was as straight as can be, but there were protesters from Westboro "Baptist" Church were are his funeral protesting against gays being in the war.
However, this is an unfair question due to the fact that African Americans had their civil rights in the 60s. If it were African Americans in the 60s vs. Gays now, African Americans win by a long shot, but at the present moment, gays are being more ridiculed.