I really didn't like the dub of Princess Mononoke. But I did manage to make it through once. Its got some good stereotypes of bad anime dubbing, like the hero's "I CAN ONLY YELL EVERY SINGLE LINE OF DIALOGUE BECAUSE I DON"T KNOW TO DO TEH ACTING!".
Technically, Fist of the North Star's acting isn't good in a dramatic way. Its awesome because its the pinnacle of quality cheeze/character acting and dialogue, like Army of Darkness or The Big Lebowski.