Any good Biopic recommendations?

I just watched The Aviator (based on Howard Hughes) and absolutely loved it.
Anyone got any recommendations for biopics? I like bios way better especially if the person the movie is based on was a hell of a character or someone significant.

Also, I know Leonardo Dicaprio does a lot of bio movies like the Aviator and I also watched the Basketball Diaries. He's a hell of an actor, plus I got a man-crush on him lol. My friend recommended J.Edgar. Does anyone here know if thats worth watching?