Thomas Ladenburg in his Digital History (American History) online made excellent illustration and comparison between the two African American giants. (Unit 11, Chapter 6)
I had to look this up when a fellow in my Chinese Philosophy class rebutted (shallowly) a lady's comment that Malcolm X was violent. I was also under the same impression about Malcolm Little X as the black lady, and still believe so after further research.
Simply put, I admire Martin Luther King Jr. but not Malcolm X, despite their upbringings which no doubt shaped their characters. King fought for equality, praying for harmony between both sides. Malcolm X's sense of justice is still trapped in segregation - If they can do this, so can we! There is no hope for peace between the two in X's philosophy. He talked about segregated rights so much that any motion of peaceful reconciliation from his mouth is merely rhetoric. X may not have done violence, but he preached with a violent, angry heart; While King preached with love.